2-aminopyrimidin-4-one and 2-aminopyridine derivatives both having BACE1-inhibiting activity

ABSTRACT

The present invention provides a compound which has an effect of inhibiting amyloid-β production and is useful as a therapeutic agent for diseases induced by production, secretion and/or deposition of amyloid-β proteins. The present invention relates to a compound represented by formula (I) or a pharmaceutically acceptable salt or solvate thereof: 
                         
wherein A is optionally substituted carbocyclic diyl or optionally substituted heterocyclic diyl; B is an optionally substituted carbocyclic group or an optionally substituted heterocyclic group; R 1  is a group such as optionally substituted lower alkyl; R 2  is a group such as hydrogen; and R 3a  and R 3b  are each independently a group such as hydrogen, provided that the following compound is excluded.

TECHNICAL FIELD

The present invention relates to a compound which has an effect ofinhibiting amyloid-β production and is useful as a therapeutic agent fordiseases induced by production, secretion and/or deposition of amyloid-βproteins.

BACKGROUND ART

In the brains of patients with Alzheimer's disease, peptides eachconsisting of approximately 40 amino acids, called amyloid-β proteins,which widely accumulate outside neurons to form insoluble plaques(senile plaques) are observed. These senile plaques are thought to killneurons and cause the onset of Alzheimer's disease. As therapeuticagents for Alzheimer's disease, agents promoting degradation ofamyloid-β proteins and amyloid-β vaccines have been studied.

Secretases are enzymes which cleave a protein called amyloid-β precursorprotein (APP) within a cell and generate an amyloid-β protein. An enzymewhich produces N-terminals of amyloid-β proteins is called as BACE1(beta-site APP-cleaving enzyme 1, β-secretase). It is considered thatproduction of amyloid-β proteins may be suppressed by inhibiting thisenzyme, and thus a substance with such an effect can serve as atherapeutic agent for Alzheimer's disease.

Non-Patent Document 1 discloses a 2-aminopyrimidin-4-one derivativewhich has a structure similar to that of the compound of the presentinvention. However, the document only discloses that this substance isuseful as an antitumor drug.

Further, 2-aminopyrimidin-4-one derivatives in Patent Documents 1 to 7and Non-Patent Document 2, 2-aminopyridine derivatives in PatentDocument 8 and Non-Patent Document 3, and an aminodihydrothiazinederivative in Patent Document 9 are known as BACE1 inhibitors. However,each of these substances has a structure different from that of thecompound of the present invention.

Patent Document 1: WO 2006/041404

Patent Document 2: WO 2006/041405

Patent Document 3: WO 2005/058311

Patent Document 4: WO 2006/065277

Patent Document 5: WO 2007/058580

Patent Document 6: WO 2007/146225

Patent Document 7: WO 2007/114771

Patent Document 8: WO 2006/065204

Patent Document 9: WO 2007/049532

-   -   Non-Patent Document 1: Journal of Medicinal Chemistry, 1995, 38,        1493-1504    -   Non-Patent Document 2: Journal of Medicinal Chemistry, 2007, 50,        5912-5925    -   Non-Patent Document 3: Journal of Medicinal Chemistry, 2007, 50,        1124-1132

SUMMARY OF THE INVENTION

The present invention provides a compound which has an effect ofinhibiting amyloid-β production, in particular a BACE1 inhibitoryeffect, and is useful as a therapeutic agent for diseases induced byproduction, secretion or deposition of amyloid-β proteins.

The present invention aims to provide the following 1) to 10).

1) A compound represented by formula (I) or a pharmaceuticallyacceptable salt or solvate thereof,

wherein A is optionally substituted carbocyclic diyl or optionallysubstituted heterocyclic diyl;

B is an optionally substituted carbocyclic group or an optionallysubstituted heterocyclic group;

R¹ is optionally substituted lower alkyl, optionally substituted loweralkenyl or optionally substituted lower alkynyl;

R² is hydrogen, optionally substituted lower alkyl, optionallysubstituted lower alkenyl, optionally substituted lower alkynyl,optionally substituted acyl or optionally substituted loweralkoxycarbonyl; and

R^(3a) and R^(3b) are each independently hydrogen, halogen, hydroxy,optionally substituted lower alkyl, optionally substituted loweralkenyl, optionally substituted acyl, optionally substituted loweralkoxy, optionally substituted aralkyl, optionally substitutedheteroarylalkyl, optionally substituted aralkyloxy, optionallysubstituted heteroarylalkyloxy, optionally substituted lower alkylthio,carboxy, optionally substituted lower alkoxycarbonyl, optionallysubstituted amino, optionally substituted carbamoyl, an optionallysubstituted carbocyclic group or an optionally substituted heterocyclicgroup, or R^(3a) or R^(3b) forms a bond together with R¹,

provided that the following compound is excluded.

2) The compound or a pharmaceutically acceptable salt or solvate thereofaccording to the above 1),

wherein A is optionally substituted benzenediyl, optionally substitutedpyridinediyl, optionally substituted pyrazinediyl or optionallysubstituted benzofurandiyl.

3) The compound or a pharmaceutically acceptable salt or solvate thereofaccording to the above 1) or 2),

wherein B is an optionally substituted heterocyclic group.

4) The compound or a pharmaceutically acceptable salt or solvate thereofaccording to the above 3),

wherein the substituent of the heterocyclic group for B is substitutedlower alkoxy, optionally substituted lower alkenyloxy or optionallysubstituted lower alkynyloxy.

5) The compound or a pharmaceutically acceptable salt or solvate thereofaccording to any one of the above 1) to 4),

wherein R^(3a) and R^(3b) are both hydrogen.

6) The compound or a pharmaceutically acceptable salt or solvate thereofaccording to any one of the above 1) to 4),

wherein R¹ and R^(3a) together form a bond, and R^(3b) is hydrogen.

7) The compound or a pharmaceutically acceptable salt or solvate thereofaccording to any one of the above 1) to 5),

wherein R¹ is C1-C3 alkyl.

8) The compound or a pharmaceutically acceptable salt or solvate thereofaccording to any one of the above 1) to 7),

wherein R² is optionally substituted lower alkyl.

9) A pharmaceutical composition, comprising

the compound or a pharmaceutically acceptable salt or solvate thereofaccording to any one of the above 1) to 8) as an active ingredient.

10) The pharmaceutical composition according to the above 9), which hasa BACE1 inhibitory activity.

The present invention also aims to provide the following 11) to 18).

11) A compound represented by formula (II) or a pharmaceuticallyacceptable salt or solvate thereof,

wherein E is optionally substituted carbocyclic diyl or optionallysubstituted heterocyclic diyl;

G is an optionally substituted carbocyclic group or an optionallysubstituted heterocyclic group;

D is lower alkylene, lower alkenylene or lower alkynylene;

R⁴ is each independently hydrogen, halogen, hydroxy, optionallysubstituted lower alkyl, optionally substituted lower alkenyl,optionally substituted acyl, optionally substituted lower alkoxy,optionally substituted aralkyl, optionally substituted heteroarylalkyl,optionally substituted aralkyloxy, optionally substitutedheteroarylalkyloxy, optionally substituted lower alkylthio, carboxy,optionally substituted lower alkoxycarbonyl, optionally substitutedamino, optionally substituted carbamoyl, an optionally substitutedcarbocyclic group or an optionally substituted heterocyclic group; and

m is an integer of 0 to 3.

12) The compound or a pharmaceutically acceptable salt or solvatethereof according to the above 11),

wherein E is optionally substituted benzenediyl, optionally substitutedpyridinediyl, optionally substituted pyrazinediyl or optionallysubstituted benzofurandiyl.

13) The compound or a pharmaceutically acceptable salt or solvatethereof according to the above 11) or 12),

wherein G is an optionally substituted heterocyclic group.

14) The compound or a pharmaceutically acceptable salt or solvatethereof according to the above 13),

wherein the substituent on the heterocyclic group of G is substitutedlower alkoxy, optionally substituted lower alkenyloxy or optionallysubstituted lower alkynyloxy.

15) The compound or a pharmaceutically acceptable salt or solvatethereof according to any one of the above 11) to 14),

wherein D is lower alkylene.

16) The compound or a pharmaceutically acceptable salt or solvatethereof according to any one of the above 11) to 15),

wherein R⁴ is each independently hydrogen, halogen or lower alkyl.

17) A pharmaceutical composition, comprising

the compound or a pharmaceutically acceptable salt or solvate thereofaccording to any one of the above 11) to 16) as an active ingredient.

18) The pharmaceutical composition according to the above 17), which hasa BACE1 inhibitory activity.

The present invention further aims to provide the following 19) to 30).

19) The pharmaceutical composition according to the above 10), which isan amyloid-β production inhibitor.

20) The pharmaceutical composition according to the above 10), which isa therapeutic agent for diseases induced by production, secretion and/ordeposition of amyloid-β proteins.

21) The pharmaceutical composition according to the above 10), which isan agent for treating Alzheimer's disease.

22) A method for treating diseases induced by production, secretion ordeposition of amyloid-β proteins, the method comprising

administering the compound of formula (I) or a pharmaceuticallyacceptable salt or solvate thereof in the above 1).

23) Use of the compound of formula (I) or a pharmaceutically acceptablesalt or solvate thereof in the above 1) in the manufacture of amedicament for treating diseases induced by production, secretion ordeposition of amyloid-β proteins.

24) The compound of formula (I) or a pharmaceutically acceptable salt orsolvate thereof in the above 1) for the use as the treatment of diseasesinduced by production, secretion or deposition of amyloid-β proteins.

25) A method for treating diseases due to BACE1, the method comprising

administering the compound of formula (I) or a pharmaceuticallyacceptable salt or solvate thereof in the above 1).

26) Use of the compound of formula (I) or a pharmaceutically acceptablesalt or solvate thereof in the above 1) in the manufacture of amedicament for treating diseases due to BACE1.

27) The compound of formula (I) or a pharmaceutically acceptable salt orsolvate thereof in the above 1) for the use as the treatment of diseasesdue to BACE1.

28) A method for treating Alzheimer's disease, comprising

administering the compound of formula (I) or a pharmaceuticallyacceptable salt or solvate thereof in the above 1).

29) Use of the compound of formula (I) or a pharmaceutically acceptablesalt or solvate thereof in the above 1) in the manufacture of amedicament for treating Alzheimer's disease.

30) The compound of formula (I) or a pharmaceutically acceptable salt orsolvate thereof in the above 1) for the use as the treatment ofAlzheimer's disease.

The present invention still further aims to provide the following 31) to42).

31) The pharmaceutical composition according to the above 18), which isan amyloid-β production inhibitor.

32) The pharmaceutical composition according to the above 18), which isa therapeutic agent for diseases induced by production, secretion and/ordeposition of amyloid-β proteins.

33) The pharmaceutical composition according to the above 18), which isan agent for treating Alzheimer's disease.

34) A method for treating diseases induced by production, secretion ordeposition of amyloid-β proteins, the method comprising

administering the compound of formula (II) or a pharmaceuticallyacceptable salt or solvate thereof in the above 11).

35) Use of the compound of formula (II) or a pharmaceutically acceptablesalt or solvate thereof in the above 11) in the manufacture of amedicament for treating diseases induced by production, secretion ordeposition of amyloid-β proteins.

36) The compound of formula (II) or a pharmaceutically acceptable saltor solvate thereof in the above 11) for the use as the treatment ofdiseases induced by production, secretion or deposition of amyloid-βproteins.

37) A method for treating diseases due to BACE1, the method comprising

administering the compound of formula (II) or a pharmaceuticallyacceptable salt or solvate thereof in the above 11).

38) Use of the compound of formula (II) or a pharmaceutically acceptablesalt or solvate thereof in the above 11) in the manufacture of amedicament for treating diseases due to BACE1.

39) The compound of formula (II) or a pharmaceutically acceptable saltor solvate thereof in the above 11) for the use as the treatment ofdiseases due to BACE1.

40) A method for treating Alzheimer's disease, comprising

administering the compound of formula (II) or a pharmaceuticallyacceptable salt or solvate thereof in the above 11).

41) Use of the compound of formula (II) or a pharmaceutically acceptablesalt or solvate thereof in the above 11) in the manufacture of amedicament for treating Alzheimer's disease.

42) The compound of formula (II) or a pharmaceutically acceptable saltor solvate thereof in the above 11) for the use as the treatment ofAlzheimer's disease.

The compound of the present invention is useful as a therapeutic agentfor diseases (e.g. Alzheimer's disease) induced by production, secretionor deposition of amyloid-β proteins.

MODES FOR CARRYING OUT THE INVENTION

The term “halogen” herein includes fluorine, chlorine, bromine andiodine.

The halogen portions in “halogeno lower alkyl” and “halogeno loweralkoxycarbonyl” are as defined above for the “halogen”.

The term “lower alkyl” herein includes C1-C15, preferably C1-C10, morepreferably C1-C6, and further preferably C1-C3 linear or branched alkyl.Examples thereof include methyl, ethyl, n-propyl, isopropyl, n-butyl,isobutyl, sec-butyl, tert-butyl, n-pentyl, isopentyl, neopentyl, hexyl,isohexyl, n-heptyl, isoheptyl, n-octyl, isooctyl, n-nonyl and n-decyl.

The lower alkyl portions in “lower alkoxy”, “halogeno lower alkyl”,“hydroxy lower alkoxy”, “lower alkoxycarbonyl”, “halogeno loweralkoxycarbonyl”, “lower alkylamino”, “hydroxyimino lower alkyl”, “loweralkoxyimino lower alkyl”, “amino lower alkyl”, “lower alkoxy loweralkoxy”, “lower alkoxy lower alkenyloxy”, “lower alkoxy loweralkynyloxy”, “lower alkylcarbamoyl”, “hydroxy lower alkylcarbamoyl”,“lower alkoxyimino”, “lower alkylthio”, “lower alkylsulfonyl”, “loweralkylsulfamoyl”, “lower alkylsulfinyl”, “carbocyclic lower alkyl”,“carbocyclic lower alkoxy”, “carbocyclic lower alkoxycarbonyl”,“carbocyclic lower alkylamino”, “carbocyclic lower alkylcarbamoyl”,“cycloalkyl lower alkyl”, “cycloalkyl lower alkoxy”, “cycloalkyl loweralkylamino”, “cycloalkyl lower alkoxycarbonyl”, “cycloalkyl loweralkylcarbamoyl”, “aryl lower alkyl”, “aryl lower alkoxy”, “aryl loweralkylamino”, “aryl lower alkoxycarbonyl”, “aryl lower alkylcarbamoyl”,“heterocyclic lower alkyl”, “heterocyclic lower alkoxy”, “heterocycliclower alkylamino”, “heterocyclic lower alkoxycarbonyl” and “heterocycliclower alkylcarbamoyl” are as defined above for the “lower alkyl”.

The “optionally substituted lower alkyl” may be substituted by one ormore groups selected from the substituent group α.

The substituent group α herein consists of halogen, hydroxy, loweralkoxy, hydroxy lower alkoxy, lower alkoxy lower alkoxy, acyl, acyloxy,carboxy, lower alkoxycarbonyl, amino, acylamino, lower alkylamino,imino, hydroxyimino, lower alkoxyimino, lower alkylthio, carbamoyl,lower alkylcarbamoyl, hydroxy lower alkylcarbamoyl, sulfamoyl, loweralkylsulfamoyl, lower alkylsulfinyl, cyano, nitro, carbocyclic groupsand heterocyclic groups.

The substituents in “optionally substituted lower alkoxy”, “optionallysubstituted lower alkoxycarbonyl” and “optionally substituted loweralkylthio” may be one or more groups selected from the substituent groupα.

The substituent in “substituted lower alkoxy” is the same as any of theabove substituents.

The term “lower alkylidene” herein includes divalent forms of the “loweralkyl”. Examples thereof include methylidene, ethylidene, propylidene,isopropylidene, butylidene, pentylidene and hexylidene.

The term “lower alkenyl” herein includes C2-C15, preferably C2-C10, morepreferably C2-C6, and further preferably C2-C4 linear or branchedalkenyl having one or more double bonds at any position. Specificexamples thereof include vinyl, allyl, propenyl, isopropenyl, butenyl,isobutenyl, prenyl, butadienyl, pentenyl, isopentenyl, pentadienyl,hexenyl, isohexenyl, hexadienyl, heptenyl, octenyl, nonenyl, decenyl,undecenyl, dodecenyl, tridecenyl, tetradecenyl and pentadecenyl.

The term “lower alkynyl” herein includes C2-C10, preferably C2-C8, andmore preferably C3-C6 linear or branched alkynyl having one or moretriple bonds at any position. Specific examples thereof include ethynyl,propynyl, butynyl, pentynyl, hexynyl, heptynyl, octynyl, nonynyl anddecynyl. These groups may further have a double bond at any position.

The substituents in “optionally substituted lower alkenyl”, “optionallysubstituted lower alkenyloxy”, “optionally substituted lower alkynyl”and “optionally substituted lower alkynyloxy” may be one or more groupsselected from the substituent group α.

The lower alkenyl portions in “lower alkoxy lower alkenyloxy”, “loweralkenyloxy”, “lower alkenylthio” and “lower alkenylamino” are as definedabove for the “lower alkenyl”.

The lower alkynyl portions in “lower alkynyloxy”, “lower alkoxy loweralkynyloxy”, “lower alkynylthio” and “lower alkynylamino” are as definedabove for the “lower alkynyl”.

The substituents in the “optionally substituted amino” and “optionallysubstituted carbamoyl” may be one or two groups selected from loweralkyl, acyl, hydroxy, lower alkoxy, lower alkoxycarbonyl, carbocyclicgroups, heterocyclic groups and the like.

The term “acyl” herein includes C1-C10 aliphatic acyl, carbocycliccarbonyl and heterocyclic carbonyl. Specific examples thereof includeformyl, acetyl, propionyl, butyryl, isobutyryl, valeryl, pivaloyl,hexanoyl, acryloyl, propioloyl, methacryloyl, crotonoyl, benzoyl,cyclohexane carbonyl, pyridine carbonyl, furan carbonyl, thiophenecarbonyl, benzothiazole carbonyl, pyrazine carbonyl, piperidine carbonyland thiomorpholino.

The acyl portions in “acylamino” and “acyloxy” are the same as mentionedabove.

The substituent in “optionally substituted acyl” may be one or moregroups selected from the substituent group α. The cyclic portions incarbocyclic carbonyl and heterocyclic carbonyl may be substituted by oneor more groups selected from lower alkyl, the substituent group α andlower alkyl substituted by one or more groups selected from thesubstituent group α.

The term “carbocyclic group” herein includes cycloalkyl, cycloalkenyl,aryl and fused non-aromatic carbocyclic groups.

The term “cycloalkyl” herein includes C3-C10, preferably C3-C8, and morepreferably C4-C8 carbocyclic groups. Examples thereof includecyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl,cyclooctyl, cyclononyl and cyclodecyl.

The cycloalkyl portions in “cycloalkyl lower alkyl”, “cycloalkyloxy”,“cycloalkyloxycarbonyl”, “cycloalkyl lower alkoxy”, “cycloalkylthio”,“cycloalkylamino”, “cycloalkyl lower alkylamino”, “cycloalkylsulfamoyl”, “cycloalkyl sulfonyl”, “cycloalkylcarbamoyl”, “cycloalkyllower alkylcarbamoyl” and “cycloalkyl lower alkoxycarbonyl” are asdefined above for the “cycloalkyl”.

The term “cycloalkenyl” herein includes those having one or more doublebonds at any position in the ring of the cycloalkyl. Specific examplesthereof include cyclopropenyl, cyclobutenyl, cyclopentenyl,cyclohexenyl, cycloheptynyl, cyclooctynyl and cyclohexadienyl.

The term “aryl” herein includes phenyl, naphthyl, anthryl andphenanthryl. Phenyl is particularly preferable among these.

The term “fused non-aromatic carbocyclic group” herein includes groupsformed by fusion of two or more cyclic groups selected from the above“cycloalkyl”, “cycloalkenyl” and “aryl”. Specific examples thereofinclude indanyl, indenyl, tetrahydronaphthyl and fluorenyl.

The carbocyclic portions in “carbocyclic diyl”, “carbocyclic oxy”,“carbocyclic lower alkyl”, “carbocyclic lower alkoxy”, “carbocycliclower alkoxycarbonyl”, “carbocyclic thio”, “carbocyclic amino”,“carbocyclic lower alkylamino”, “carbocyclic carbonyl”, “carbocyclicsulfamoyl”, “carbocyclic sulfonyl”, “carbocyclic carbamoyl”,“carbocyclic lower alkylcarbamoyl” and “carbocyclic oxycarbonyl” are thesame as the carbocycle of the “carbocyclic group”.

The aryl portions in “aralkyl”, “aralkyloxy”, “aryl lower alkyl”,“aryloxy”, “aryloxycarbonyl”, “aryl lower alkoxycarbonyl”, “arylthio”,“arylamino”, “aryl lower alkoxy”, “aryl lower alkylamino”,“arylsulfonyl”, “arylsulfamoyl”, “arylcarbamoyl” and “aryl loweralkylcarbamoyl” are as defined above for the “aryl”.

The substituents in “optionally substituted aralkyl” and “optionallysubstituted aralkyloxy” may be one or more groups selected from thesubstituent group α.

The term “heterocyclic group” herein includes heterocyclic groups havingone or more hetero atoms arbitrarily selected from O, S and N in thering. Specific examples thereof include:

5- or 6-membered heteroaryls such as pyrrolyl, imidazolyl, pyrazolyl,pyridyl, pyridazinyl, pyrimidinyl, pyrazinyl, triazolyl, triazinyl,tetrazolyl, furyl, thienyl, isoxazolyl, oxazolyl, oxadiazolyl,isothiazolyl, triazolyl and thiadiazolyl;

non-aromatic heterocyclic groups such as dioxanyl, thiiranyl, oxiranyl,oxetanyl, oxathioranyl, azetidinyl, thianyl, thiazolidinyl,pyrrolidinyl, pyrrolinyl, imidazolidinyl, imidazolinyl, pyrazolidinyl,pyrazolinyl, piperidyl, piperazinyl, morpholinyl, morpholino,thiomorpholinyl, thiomorpholino, dihydropyridyl, tetrahydropyridyl,tetrahydrofuryl, tetrahydropyranyl, dihydrothiazolyl,tetrahydrothiazolyl, tetrahydroisothiazolyl, dihydrooxazinyl,hexahydroazepinyl, tetrahydrodiazepinyl and tetrahydropyridazinyl;

fused bicyclic heterocyclic groups such as indolyl, isoindolyl,indazolyl, indolizinyl, indolinyl, isoindolinyl, quinolyl, isoquinolyl,cinnolinyl, phthalazinyl, quinazolinyl, naphthyridinyl, quinoxalinyl,purinyl, pteridinyl, benzopyranyl, benzimidazolyl, benzotriazolyl,benzisoxazolyl, benzoxazolyl, benzoxadiazolyl, benzoisothiazolyl,benzothiazolyl, benzothiadiazolyl, benzofuryl, isobenzofuryl,benzothienyl, benzotriazolyl, thienopyridyl, thienopyrrolyl,thienopyrazolyl, thienopyrazinyl, furopyrrolyl, thienothienyl,imidazopyrazyl, imidazopyridyl, pyrazolopyridyl, thiazolopyridyl,pyrazolopyrimidinyl, pyrrolopyrimidinyl, pyrazolotriazinyl,pyridazolopyridyl, triazolopyridyl, imidazothiazolyl,pirazinopyridazinyl, quinazolinyl, quinolyl, isoquinolyl,naphthyridinyl, dihydrothiazolopyrimidinyl, tetrahydroquinolyl,tetrahydroisoquinolyl, dihydrobenzofuryl, dihydrobenzoxazinyl,dihydrobenzimidazolyl, tetrahydrobenzothienyl, tetrahydrobenzofuryl,benzodioxolyl, benzodioxonyl, chromanyl, chromenyl, octahydrochromenyl,dihydrobenzodioxinyl, dihydrobenzooxedinyl, dihydrobenzodioxepinyl anddihydrothienodioxinyl; and

fused tricyclic heterocyclic groups such as carbazolyl, acridinyl,xanthenyl, phenothiazinyl, phenoxathiinyl, phenoxazinyl, dibenzofuryl,imidazoquinolyl and tetrahydrocarbazolyl. Preferable among these are 5-or 6-membered heteroaryls or non-aromatic heterocyclic groups.

The heterocyclic portions in “heterocyclic diyl”, “heterocyclic loweralkyl”, “heterocyclic oxy”, “heterocyclic thio”, “heterocycliccarbonyl”, “heterocyclic lower alkoxy”, “heterocyclic amino”,“heterocyclic sulfamoyl”, “heterocyclic sulfonyl”, “heterocycliccarbamoyl”, “heterocyclic oxycarbonyl”, “heterocyclic lower alkylamino”,“heterocyclic lower alkoxycarbonyl” and “heterocyclic loweralkylcarbamoyl” are the same as the heterocycle of the above“heterocyclic group”.

The bond(s) in “heterocyclic group” and “heterocyclic diyl” may bepositioned in any ring.

The substituents in “optionally substituted carbocyclic diyl”,“optionally substituted benzenediyl”, “optionally substitutedheterocyclic diyl”, “optionally substituted pyridinediyl”, “optionallysubstituted pyrazinediyl”, “optionally substituted benzofurandiyl”,“optionally substituted carbocyclic group” and “optionally substitutedheterocyclic group” for A, B, E and G may be as follows:

substituents selected from the substituent group α;

lower alkyl which may be substituted by one or more groups selected fromthe substituent group α, hydroxyimino and lower alkoxyimino (preferableexamples of the substituent(s) include halogen, hydroxy, lower alkoxyand lower alkoxycarbonyl);

amino lower alkyl substituted by one or more groups selected from thesubstituent group α (preferable examples of the substituent(s) includeacyl, lower alkyl and/or lower alkoxy);

hydroxyimino lower alkyl; lower alkoxyimino lower alkyl;

lower alkenyl which may be substituted by one or more groups selectedfrom the substituent group α (preferable examples of the substituent(s)include lower alkoxycarbonyl, halogen and/or halogeno loweralkoxycarbonyl);

lower alkynyl which may be substituted by one or more groups selectedfrom the substituent group α (preferable examples of the substituent(s)include lower alkoxycarbonyl);

lower alkoxy which may be substituted by one or more groups selectedfrom the substituent group α (preferable examples of the substituent(s)include halogen, carbamoyl, oxetane, lower alkylcarbamoyl and hydroxylower alkylcarbamoyl);

lower alkoxy lower alkoxy which may be substituted by one or more groupsselected from the substituent group α;

lower alkenyloxy which may be substituted by one or more groups selectedfrom the substituent group α (preferable examples of the substituent(s)include halogen, hydroxy, amino and lower alkylamino);

lower alkoxy lower alkenyloxy which may be substituted by one or moregroups selected from the substituent group α;

lower alkynyloxy which may be substituted by one or more groups selectedfrom the substituent group α (preferable examples of the substituent(s)include halogen and hydroxy);

lower alkoxy lower alkynyloxy which may be substituted by one or moregroups selected from the substituent group α;

lower alkylthio which may be substituted by one or more groups selectedfrom the substituent group α;

lower alkenylthio which may be substituted by one or more groupsselected from the substituent group α;

lower alkynylthio which may be substituted by one or more groupsselected from the substituent group α;

lower alkylamino substituted by one or more groups selected from thesubstituent group α;

lower alkenylamino substituted by one or more groups selected from thesubstituent group α;

lower alkynylamino substituted by one or more groups selected from thesubstituent group α;

aminooxy which may be substituted by one or more groups selected fromthe substituent group α and lower alkylidene;

acyl substituted by one or more groups selected from the substituentgroup α;

lower alkylsulfonyl which may be substituted by one or more groupsselected from the substituent group α;

lower alkylsulfinyl which may be substituted by one or more groupsselected from the substituent group α; sulfamoyl;

lower alkylsulfamoyl which may be substituted by one or more groupsselected from the substituent group α;

carbocyclic groups which may be substituted by one or more groupsselected from the substituent group α, azide, lower alkyl and halogenolower alkyl (preferable examples thereof include cycloalkyl and aryl);

heterocyclic groups which may be substituted by one or more groupsselected from the substituent group α, azide, lower alkyl and halogenolower alkyl;

carbocyclic lower alkyl which may be substituted by one or more groupsselected from the substituent group α, azide, lower alkyl and halogenolower alkyl (preferable examples thereof include cycloalkyl lower alkyland aryl lower alkyl);

heterocyclic lower alkyl which may be substituted by one or more groupsselected from the substituent group α, azide, lower alkyl and halogenolower alkyl;

carbocyclic oxy which may be substituted by one or more groups selectedfrom the substituent group α, azide, lower alkyl and halogeno loweralkyl (preferable examples thereof include cycloalkyloxy and aryloxy)

heterocyclic oxy which may be substituted by one or more groups selectedfrom the substituent group α, azide, lower alkyl and halogeno loweralkyl;

carbocyclic lower alkoxy which may be substituted by one or more groupsselected from the substituent group α, azide, lower alkyl and halogenolower alkyl (preferable examples thereof include cycloalkyl lower alkoxyand aryl lower alkoxy);

heterocyclic lower alkoxy which may be substituted by one or more groupsselected from the substituent group α, azide, lower alkyl and halogenolower alkyl;

carbocyclic lower alkoxycarbonyl which may be substituted by one or moregroups selected from the substituent group α, azide, lower alkyl andhalogeno lower alkyl (preferable examples thereof include cycloalkyllower alkoxycarbonyl, aryl lower alkoxycarbonyl);

heterocyclic lower alkoxycarbonyl which may be substituted by one ormore groups selected from the substituent group α, azide, lower alkyland halogeno lower alkyl;

carbocyclic thio which may be substituted by one or more groups selectedfrom the substituent group α, azide, lower alkyl and halogeno loweralkyl (preferable examples thereof include cycloalkylthio and arylthio);

heterocyclic thio which may be substituted by one or more groupsselected from the substituent group α, azide, lower alkyl and halogenolower alkyl;

carbocyclic amino which may be substituted by one or more groupsselected from the substituent group α, azide, lower alkyl and halogenolower alkyl (preferable examples thereof include cycloalkylamino andarylamino);

heterocyclic amino which may be substituted by one or more groupsselected from the substituent group α, azide, lower alkyl and halogenolower alkyl;

carbocyclic lower alkylamino which may be substituted by one or moregroups selected from the substituent group α, azide, lower alkyl andhalogeno lower alkyl (preferable examples thereof include cycloalkyllower alkylamino, aryl lower alkylamino);

heterocyclic lower alkylamino which may be substituted by one or moregroups selected from the substituent group α, azide, lower alkyl andhalogeno lower alkyl;

lower alkylsulfamoyl which may be substituted by one or more groupsselected from the substituent group α;

carbocyclic sulfamoyl which may be substituted by one or more groupsselected from the substituent group α, azide, lower alkyl and halogenolower alkyl (preferable examples thereof include cycloalkylsulfamoyl andarylsulfamoyl);

heterocyclic sulfamoyl which may be substituted by one or more groupsselected from the substituent group α, azide, lower alkyl and halogenolower alkyl;

carbocyclic sulfonyl which may be substituted by one or more groupsselected from the substituent group a, azide, lower alkyl and halogenolower alkyl (preferable examples thereof include cycloalkylsulfonyl andarylsulfonyl);

heterocyclic sulfonyl which may be substituted by one or more groupsselected from the substituent group α, azide, lower alkyl and halogenolower alkyl;

carbocyclic carbamoyl which may be substituted by one or more groupsselected from the substituent group α, azide, lower alkyl and halogenolower alkyl (preferable examples thereof include cycloalkylcarbamoyl andarylcarbamoyl);

heterocyclic carbamoyl which may be substituted by one or more groupsselected from the substituent group α, azide, lower alkyl and halogenolower alkyl;

carbocyclic lower alkylcarbamoyl which may be substituted by one or moregroups selected from the substituent group α, azide, lower alkyl andhalogeno lower alkyl (preferable examples thereof include cycloalkyllower alkylcarbamoyl and aryl lower alkylcarbamoyl);

heterocyclic lower alkylcarbamoyl which may be substituted by one ormore groups selected from the substituent group α, azide, lower alkyland halogeno lower alkyl;

carbocyclic oxycarbonyl which may be substituted by one or more groupsselected from the substituent group α, azide, lower alkyl and halogenolower alkyl (preferable examples thereof include cycloalkyloxycarbonyland aryloxycarbonyl);

heterocyclic oxycarbonyl which may be substituted by one or more groupsselected from the substituent group a, azide, lower alkyl and halogenolower alkyl;

lower alkylenedioxy which may be substituted by halogen;

oxo; and azide. The above groups may be substituted by one or moregroups selected from these groups.

The substituents in “optionally substituted carbocyclic group” and“optionally substituted heterocyclic group” for groups other than A, B,E and G may be one or more groups selected from the group consisting oflower alkyl and the substituent group α.

The term “heteroaryl” herein includes aromatic heterocyclic groups whichare included in the “heterocyclic group”.

The heteroaryl portions in “heteroarylalkyl” and “heteroarylalkyloxy”are as defined above for the “heteroaryl”.

The substituents in “optionally substituted heteroarylalkyl” and“optionally substituted heteroarylalkyloxy” may be one or more groupsselected from the substituent group α.

The term “lower alkylene” herein includes C1-C10, preferably C1-C6, andmore preferably C1-C3 linear or branched divalent carbon chains.Specific examples thereof include methylene, dimethylene, trimethylene,tetramethylene and methyl trimethylene.

The lower alkylene portion in the “lower alkylenedioxy” is as definedabove for the “lower alkylene”.

The term “lower alkenylene” herein includes C2-C10, preferably C2-C6,and more preferably C2-C4 linear or branched divalent carbon chainshaving a double bond at any position. Specific examples thereof includevinylene, propenylene, butenylene, butadienylene, methyl propenylene,pentenylene and hexenylene.

The term “lower alkynylene” herein includes C2-C10, more preferablyC2-C6, and more preferably C2-C4 linear or branched divalent carbonchains having a triple bond at any position and optionally having adouble bond. Specific examples thereof include ethynylene, propynylene,butynylene, pentynylene and hexynylene.

The phrase “R^(3a) or R^(3b) forms a bond together with R¹” means thatR^(3a) or R^(3b) forms a bond together with R¹ so that a carbon-carbondouble bond is formed between the carbon to which R^(3a) and R^(3b) arebonded and the carbon to which R¹ is bonded.

The term “solvate” herein includes, for example, solvates with organicsolvents and hydrates. In the case that a hydrate is formed, thecompound or salt may be coordinated with any number of water molecules.

The compound of formula (I) and the compound of formula (II) includepharmaceutically acceptable salts thereof. Examples thereof includesalts with alkaline metals (e.g. lithium, sodium and potassium),alkaline earth metals (e.g. magnesium and calcium), ammonium, organicbases and amino acids, and salts with inorganic acids (e.g. hydrochloricacid, sulfuric acid, nitric acid, hydrobromic acid, phosphoric acid andhydroiodic acid) and organic acids (e.g. acetic acid, trifluoroaceticacid, citric acid, lactic acid, tartaric acid, oxalic acid, maleic acid,fumaric acid, mandelic acid, glutaric acid, malic acid, benzoic acid,phthalic acid, benzenesulfonic acid, p-toluenesulfonic acid,methanesulfonic acid and ethanesulfonic acid). Specifically preferableare hydrochloric acid, phosphoric acid, tartaric acid andmethanesulfonic acid. These salts may be formed by a routine method.

The compound of formula (I) and the compound of formula (II) are eachnot limited to a specific isomer, and include any possible isomers (e.g.keto-enol isomers, imine-enamine isomers, diastereoisomers, opticalisomers and rotamers) and racemic mixtures.

The present invention relates to the compound of formula (I) which has a2-aminopyrimidin-4-one structure as its core and has a side chain (B)bonding to the core via a linker moiety (A) and an amide linkage, andthe compound of formula (II) which has a 2-aminopyridine structure asits core and has a side chain (G) bonding to the core via a linkermoiety (E) and an amide linkage. The compounds having the aboverespective cores have the same linker moiety and the side chain. Thefunctional groups in each of the compounds are under the same definitionmentioned above.

In the compound of formula (I), A is preferably optionally substitutedbenzenediyl, optionally substituted pyridinediyl, optionally substitutedpyrazinediyl or optionally substituted benzofurandiyl.

B is preferably an optionally substituted heterocyclic group.

The substituent of the heterocyclic group for B is preferablysubstituted lower alkoxy, optionally substituted lower alkenyloxy oroptionally substituted lower alkynyloxy.

R^(3a) and R^(3b) are both preferably hydrogen.

R¹ is preferably C1-C3 alkyl.

R² is preferably optionally substituted lower alkyl.

B is preferably an optionally substituted aromatic carbocyclic group oran optionally substituted aromatic heterocyclic group.

B is preferably a carbocyclic group substituted with other than oxo or aheterocyclic group substituted with other than oxo.

In the compound of formula (II), the carbocycle or heterocycle of thecarbocyclic diyl or heterocyclic diyl for E is preferably an optionallysubstituted benzene ring, an optionally substituted pyridine ring, anoptionally substituted pyrazine ring or an optionally substitutedbenzofuran ring.

G is preferably an optionally substituted heterocyclic group.

The substituent in the heterocyclic group for G is preferablysubstituted lower alkoxy, optionally substituted lower alkenyloxy oroptionally substituted lower alkynyloxy.

D is preferably lower alkylene.

R⁴ is each independently preferably hydrogen, halogen or lower alkyl.

Compound (1) of the present invention may be produced by the followingmethod.

Synthesis of 2-aminopyrimidin-4-one derivative (I-1)

In the scheme, each symbol is under the same definition mentioned above.

Step 1

Compound b is mixed with an alkyl metal reagent such as n-butyl lithium,t-butyl lithium, sodium bis(trimethylsilyl)amide or lithiumdiisopropylamide, a metal hydride reagent such as sodium hydride orpotassium hydride, a metal alkoxide reagent such as potassium t-butoxideor sodium t-butoxide and the like in a solvent such as tetrahydrofuranat −50° C. to −100° C., preferably −30° C. to −90° C., and reacted witheach other at 0° C. to 100° C., preferably 10° C. to 30° C., for 1 to 90minutes, preferably 20 to 60 minutes. Compound a which is commerciallyavailable or prepared by a common method is added thereto over 1 to 90minutes, preferably 20 to 60 minutes, and further reacted for 1 to 90minutes, preferably 20 to 70 minutes. The resulting mixture is heated upto room temperature, and is reacted for 1 to 30 hours, preferably 10 to24 hours. Compound c is thereby obtained.

Step 2

Compound c is mixed with a base such as sodium hydroxide, potassiumhydroxide or lithium hydroxide in a mixed solvent such asmethanol-water. They are reacted for 0.5 to 30 hours, preferably 1 to 24hours, at room temperature. Compound d is thereby obtained.

Step 3

Compound d is mixed with a mixture of oxalyl chloride and a catalyticamount of dimethyl formamide, or a chlorinating reagent such as thionylchloride, phosphorus trichloride and phosphorus pentachloride in asolvent such as dichloromethane. They are reacted for 10 minutes to 5hours, preferably 1 to 3 hours, at room temperature. Compound e isthereby obtained.

Step 4

Bromine cyanide is mixed with a base such as potassium carbonate, sodiumcarbonate or sodium hydrogencarbonate in a solvent such astetrahydrofuran at −30° C. to −100° C., preferably −50° C. to −80° C.,and then mixed with an R²-amine solution. The resulting mixture isreacted for 10 minutes to 5 hours, preferably 1 to 3 hours, at −30° C.to −100° C., preferably −40° C. to −80° C. The reaction solution isfiltered, and the filtrate is mixed with Compound e which is dissolvedin tetrahydrofuran, and an organic base such as diisopropylethylamine,diazabicycloundecene or diazabicyclononan at −30° C. to −100° C.,preferably −40° C. to −80° C. The mixture is stirred for 10 minutes to 8hours, preferably 2 to 6 hours, at the same temperature. Compound f isthereby obtained.

Step 5

Compound f is mixed with 4-methoxybenzylamine in a solvent such asdimethylformamide, dimethylacetamide or N-methylpyrrolidone. They arereacted for 3 to 30 hours, preferably 5 to 24 hours, at roomtemperature. Compound g is thereby obtained.

Step 6

Compound g is reacted with an oxidant such as diammonium cerium nitrate(CAN), 2,3-dichloro-5,6-dicyano-p-benzoquinoline (DDQ) or ozone, or itis electrooxidated, in a mixed solvent of water and an organic solventsuch as acetonitrile, dichloromethane or chloroform, for 10 minutes to 8hours, preferably 2 to 6 hours, at 10° C. to 100° C., preferably 50° C.to 100° C. Compound h is thereby obtained.

Step 7

Compound h is mixed with di-t-butyl dicarbonate and a base, ifnecessary, such as 4-dimethylaminopyridine, triethylamine, pyridine orpotassium carbonate in a solvent such as dichloromethane, chloroform,acetonitrile, tetrahydrofuran or water or in a mixed solvent. They arereacted for 10 minutes to 2 hours, preferably 30 to 60 minutes at roomtemperature. Compound i is thereby obtained.

Step 8

Compound i is mixed with Pd(OH)₂, palladium-carbon, platinum-carbon orRaney nickel in a solvent such as methanol, ethanol, ethyl acetate ordioxane. They are reacted for 10 minutes to 8 hours, preferably 2 to 6hours, at room temperature under hydrogen atmosphere. Compound j isthereby obtained.

Step 9

A carboxylic acid which is suitable for the target compound is mixedwith an organic base such as triethylamine, pyridine ordiisopropylethylamine, and then mixed with Compound j, in a solvent suchas dimethylformamide in the presence of a condensation agent such asHATU (O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate), DCC (dicyclohexyl carbodiimide), WSCD (water-solublecarbodiimide), chlorocarbonic acid ester or carbonyldiimidazole. Theyare reacted for 0.5 to 7 hours, preferably 1 to 5 hours, at roomtemperature. Compound k is thereby obtained.

Step 10

Compound k is mixed with trifluoroacetic acid (TFA), sulfuric acid,methanesulfonic acid, formic acid, hydrochloric acid, hydrobromic acidor the like in a solvent such as dichloromethane under ice-coldconditions.

They are reacted for 10 minutes to 5 hours, preferably 45 minutes to 3hours, at room temperature. Compound (1-1) is thereby obtained.

Compound a′ which is commercially available or prepared by a commonmethod may be used instead of the above Compound a. In this case, thering portion may be formed to prepare Compound i′ in a similar manner,and then Compound j may be prepared by the following method.

In the scheme, Hal means halogen, and the other symbols are under thesame definitions mentioned above.

In a solvent such as tetrahydrofuran, toluene or xylene, Compound i′ ismixed with tris dibenzylideneacetone dipalladium, palladium acetate orpalladium(0) prepared in situ and a phosphine ligand such astri-tert-butylphosphine or dicyclohexylbiphenylphosphine, then mixedwith lithium hexamethyldisilazide at −40° C. to 30° C., and thereaftermixed with lithium amide, or gaseous ammonia or liquid ammonia. They arereacted for 0.5 to 48 hours, preferably 3 to 20 hours, at −40° C. to100° C., preferably 0° C. to 60° C. Compound j is thereby obtained.

Compound (II) of the present invention may be produced by the followingmethod.

Synthesis of 2-Aminopyridine Derivative (II-1)

In the scheme, each symbol is under the same definition mentioned above.

Step 1

Compound l which is commercially available or prepared by a commonmethod is mixed with an organic base such as triethylamine, pyridine ordiisopropylethylamine in the presence of a carboxylic acid which issuitable for the target compound and a condensation agent such as HATU,DCC, WSCD, chlorocarbonic acid ester or carbonyl dimidazole in a solventsuch as dimethylformamide, dimethylacetamide or dimethylsulfoxide. Theyare reacted for 10 minutes to 5 hours, preferably 30 minutes to 2 hours,at room temperature. Compound m is thereby obtained.

Step 2

Compound m is mixed with an oxidant such as a Dess-Martin reagent,2-iodoxyacetic acid, a Swern oxidation reagent, pyridinium dichromate orpyridinium chlorochromate in a solvent such as dichloromethane ordimethylsulfoxide under a nitrogen stream. They are reacted for 10minutes to 5 hours, preferably 1 to 3 hours, at room temperature.Compound n is thereby obtained.

Step 3

Compound n and Compound o which is commercially available or prepared bya common method are mixed with a catalytic amount of acetic acid and ahydrogenation reagent such as sodium triacetoxyborohydride, sodiumcyanoborohydride, sodium borohydride, pyridine borane complex or sodiumborohydride in a solvent such as dichloromethane, tetrahydrofuran oracetonitrile. They are reacted for 0.5 to 20 hours, preferably 5 to 10hours, at room temperature. Compound (II-1) is thereby obtained.

In the above reaction, a carboxylic acid which is suitable for thetarget compound may be prepared by reacting an ester which is suitablefor the target compound with a base such as sodium hydroxide, lithiumhydroxide or potassium carbonate for 10 minutes to 24 hours, preferably1 to 5 hours, at 0° C. to 50° C., preferably 10° C. to 40° C., in thepresence of a solvent such as methanol, ethanol or water, or a mixedsolvent thereof.

In the above reaction, the amide linkage between the side chain and thelinker moiety may be formed by the following method.

The linker moiety is reacted with a substance which has a side chainsuitable for the target compound, selected from acid chlorides, acidanhydrides, chlorocarbonic acid esters, isocyanates and the like, for0.1 to 24 hours, preferably 1 to 12 hours, at −80° C. to 100° C.,preferably −20° C. to 40° C., with or without a solvent such astetrahydrofuran or dichloromethane and with or without a base such aspyridine or triethylamine.

Compounds used for forming the linker moieties (A) and (E) or the sidechains (B) and (G) may be commercially available or may be produced bythe following method or a method of the reference examples mentionedlater.

Method for Forming Linker Moiety

Compound aa which is suitable for the target compound is mixed withpropan-2-one oxime, and a base such as potassium t-butoxide, potassiumhydride, sodium hydride or sodium ethoxide in an organic solvent such asdimethylformamide, dimethylacetamide or N-methylpyrrolidone. They arereacted for 1 to 24 hours, preferably 1 to 12 hours at room temperature.Compound ab is thereby obtained.

Compound ab is reacted with hydrogen chloride, sulfuric acid,trifluoroacetoxy triflate or the like in a solvent such as acetic acid,formic acid or ethanol for 1 to 24 hours, preferably 1 to 12 hours, at10° C. to 150° C., preferably 80° C. to 120° C. Compound ac is therebyobtained.

Compound ac is mixed with Pd(OH)₂, palladium-carbon, platinum-carbon,Raney nickel or the like in a solvent such as methanol or ethyl acetateunder hydrogen atmosphere.

They are reacted for 1 to 24 hours, preferably 1 to 12 hours, at roomtemperature. Compound ad is thereby obtained.

Method for Producing Carboxylic Acid af

Compound ae is dissolved in a solvent such as toluene, hexane,dichloromethane or tetrahydrofuran, or a mixed solvent thereof. Asolution of n-butyl lithium, s-butyl lithium or tert-butyl lithium isdropwise added thereto at −100° C. to 0° C., preferably −80° C. to 0° C.Dry ice is added thereto at the same temperature, and they are reactedfor 10 minutes to 5 hours, preferably 1 to 3 hours. Compound of isthereby obtained.

A compound which forms a side chain such as the below-listed B2 may beobtained in the same manner.

Method for Producing Carboxylic Acid ah

Compound ag is dissolved in a solvent such as 2-propanol ordimethylformamide or a mixed solvent thereof.

A catalytic amount of palladium (II) acetate,1,1′-bis(diphenylphosphino)ferrocene or a catalyst such astetrakis(triphenylphosphine)palladium ordichlorobis(triphenylphosphine)palladium, and a base such as potassiumacetate, sodium hydroxide, potassium hydroxide, triethylamine ortri-n-butylamine are added thereto. They are reacted for 1 to 48 hours,preferably 4 to 24 hours, at 50° C. to 100° C., preferably 70° C. to 90°C., under carbon monoxide atmosphere. Compound ah is thereby obtained.

Method for Producing Carboxylic Acid ak

Compound ai is dissolved in a solvent such as dimethylformamide,dimethylacetamide or N-methylpiperidone. An aqueous solution of sodiumcyanide or potassium cyanide is added thereto, and they are reacted for1 to 24 hours, preferably 1 to 12 hours, at 0° C. to 100° C., preferably20° C. to 50° C. Compound aj is thereby obtained.

Compound aj is mixed and reacted with an aqueous solution of sodiumhydroxide or potassium hydroxide for 1 to 24 hours, preferably 1 to 12hours, at 20° C. to 100° C., preferably 20° C. to 50° C. Compound ak isthereby obtained.

Method for Producing Carboxylic Acid an

Compound al is dissolved in methanol. Sodium methoxide is added thereto,and they are reacted for 1 to 24 hours, preferably 1 to 12 hours, at 0°C. to 60° C., preferably 20° C. to 50° C. Compound am is therebyobtained.

Concentrated hydrochloric acid or concentrated sulfuric acid is addedthereto, and they are reacted for 1 to 12 hours, preferably 1 to 6hours, while being heated to reflux. Compound an is thereby obtained.

Method for Producing Carboxylic Acid ap

Compound ao is dissolved in a solvent such as methanol, ethanol orwater, or a mixed solvent thereof. A base such as an aqueous solution ofsodium hydroxide, potassium hydroxide or lithium hydroxide is addedthereto. They are reacted for 1 to 24 hours, preferably 1 to 12 hours,at 0° C. to 80° C., preferably 20° C. to 50° C. Compound ap is therebyobtained.

Method for Producing Carboxylic Acid av

Compound aq is reacted with bromine or potassium bromide, copper bromideor the like in an aqueous solution of hydrobromic acid in the presenceof a nitrite ester such as sodium nitrite or isoamyl nitrite for 0.5 to5 hours, preferably 1 to 2 hours, at −20° C. to 20° C., preferably −10°C. to 10° C. Compound ar is thereby obtained.

The obtained Compound ar is dissolved in an organic solvent such astoluene, tetrahydrofuran or methanol and water. Metal such as iron, tinor zinc and ammonium chloride or hydrochloric acid are added thereto,and they are reacted for 1 to 8 hours, preferably 2 to 5 hours, at 30°C. to 150° C., preferably 50° C. to 120° C. Compound as is therebyobtained.

The obtained Compound as is dissolved in an organic solvent such asdimethylformamide, dimethylacetamide or N-methylpyrrolidone. A catalyticamount of tetrakis(triphenylphosphine)palladium and 0.3 to 1 equivalentzinc cyanide are added thereto, and they are reacted for 3 to 20 hoursat 50° C. to 150° C., or reacted for 5 to 30 minutes at 50° C. to 120°C. with microwave irradiation. Compound at is thereby obtained.

Compound at is mixed with concentrated hydrochloric acid or concentratedsulfuric acid. They are reacted for 6 to 30 hours, preferably 12 to 24hours, at 50° C. to 150° C. Compound au is thereby obtained.

Compound au is mixed with di-t-butyl dicarbonate and a base such as4-dimethylaminopyridine, triethylamine, pyridine, potassium carbonate orsodium hydroxide in a solvent such as dichloromethane, acetonitrile,tetrahydrofuran or water, or a mixed solvent thereof. They are reactedfor 10 minutes to 2 hours, preferably 30 to 60 minutes, at roomtemperature. Compound av is thereby obtained.

Method for Producing Carboxylic Acid ba

Compound aw is dissolved in an organic solvent such as toluene orbenzene. A largely excessive amount of chlorinating agent such assulfuryl chloride or thionyl chloride is added thereto. They are reactedfor 2 to 10 hours, preferably 3 to 6 hours, at 30° C. to 150° C.,preferably 60° C. to 100° C. Compound ax is thereby obtained.

The obtained Compound ax is dissolved in methanol. Sodium methoxide isadded thereto, and they are reacted for 1 to 5 hours, preferably 2 to 4hours, at 20° C. to 70° C., preferably 30° C. to 60° C. Compound ay isthereby obtained.

The obtained Compound ay is dissolved in an organic solvent such asethanol, methanol, ethyl acetate or tetrahydrofuran. A catalyticreduction catalyst such as palladium-carbon or platinum-carbon is addedthereto, and they are reacted for 1 to 24 hours, preferably 5 to 12hours, at room temperature under hydrogen atmosphere. Compound az isthereby obtained.

The obtained Compound az is dissolved in a solvent such astetrahydrofuran, methanol or water, or a mixed solvent thereof. Anaqueous solution of sodium hydroxide, lithium hydroxide, potassiumhydroxide or the like is added thereto, and they are reacted for 1 to 24hours, preferably 1 to 12 hours, at 0° C. to 60° C., preferably 20° C.to 40° C. Compound ba is thereby obtained.

Method for Producing Carboxylic Acid bg

Compounds bb and be are dissolved in methanol. Sodium methoxide is addedthereto, and they are reacted for 3 to 7 hours at 0° C. to 20° C.Compound bd is thereby obtained.

The obtained Compound bd is dissolved in an organic solvent such asdichloromethane, dimethylformamide, dimethylacetamide orN-methylpyrrolidone. An oxidant such as metachloroperbenzoic acid,hydrogen peroxide or potassium permanganate is added thereto. They arereacted for 1 to 12 hours, preferably 2 to 8 hours, at 0° C. to 50° C.,preferably 10° C. to 30° C. Compound be is thereby obtained.

The obtained Compound be is dissolved in an organic solvent such asdimethylformamide, dimethylacetamide or N-methylpyrrolidone. A cyanatingagent such as potassium cyanide or sodium cyanide is added thereto. Theyare reacted for 1 to 8 hours, preferably 2 to 6 hours, at 0° C. to 50°C., preferably 10° C. to 30° C. Compound bf is thereby obtained.

The obtained Compound bf is dissolved in a solvent such astetrahydrofuran, methanol or water, or a mixed solvent thereof. Anaqueous solution of sodium hydroxide, lithium hydroxide, potassiumhydroxide or the like is added thereto. They are reacted for 1 to 8hours, preferably 2 to 5 hours, at 0° C. to 100° C., preferably 40° C.to 80° C. Compound bg is thereby obtained.

Method for Producing Benzofuran Derivative

Compound bh which is suitable for the target compound is mixed withCompound bi and a base such as potassium carbonate, sodium carbonate orsodium hydride in a solvent such as acetone, methylethylketone,tetrahydrofuran, dioxane, dichloromethane or dimethylformamide. They arereacted for 0.5 to 12 hours, preferably 1 to 8 hours, while being heatedto reflux. Compound bj is thereby obtained.

Method for Producing 5-Membered Ring Compounds bn and bo

Compound bk which is suitable for the target compound is mixed withmethylhydrazine in acetic acid. They are reacted for 10 minutes to 5hours, preferably 30 minutes to 2 hours, at room temperature. A mixtureof Compound bl and Compound bm is thereby obtained.

This mixture is reacted with an oxidant such as potassium permanganateor sodium periodate for 30 minutes to 10 hours, preferably 1 to 5 hours,at 0° C. to 100° C., preferably 20° C. to 50° C., in a mixed solvent ofacetone, water and the like. A mixture of Compound bn and Compound bo isthereby obtained. A required isomer can be obtained by a commonpurifying process.

Method for Producing 5-Membered Ring Compound bq

Acetic acid, Compound bp, and methylhydrazine are mixed with each otherin a solvent such as tetrahydrofuran, dimethylformamide orN-methylpyrrolidone. They are reacted for 1 to 24 hours, preferably 1 to12 hours, at 20° C. to 60° C. Compound bq is thereby obtained.

Method for Producing 5-Membered Ring Compound bt

Compound br and Compound bs are mixed with triethylamine in the presenceof a solvent such as tetrahydrofuran or dichloromethane. They arereacted for 1 to 24 hours, preferably 1 to 12 hours, at 20° C. to 60° C.Compound bt is thereby obtained.

Method for Producing 5-Membered Ring Compound bv

Compound br is mixed with trifluoroacetic anhydride and a base such astriethylamine or pyridine in the presence of a solvent such astetrahydrofuran or dichloromethane. They are reacted for 1 to 12 hours,preferably 1 to 6 hours, at 0° C. to 40° C. Compound bu is therebyobtained.

This compound is dissolved in a solvent such as tetrahydrofuran ordichloromethane, and bromotrichloromethane and a base such asdiazabicycloundecene or diazabicyclononane are added thereto at −20° C.to 20° C. They are reacted for 1 to 24 hours, preferably 1 to 12 hours,at 0° C. to 20° C. Compound by is thereby obtained.

Method for Producing 5-Membered Ring Compound bx

Compound bw is dissolved, if necessary, in a solvent such asdichloromethane, and it is mixed with trifluoroacetic anhydride ormethanesulfonyl chloride and a base such as pyridine or triethylamine.They are reacted for 1 to 12 hours, preferably 1 to 6 hours, at 0° C. to30° C. Compound bx is thereby obtained.

Method for Producing Fused Cyclic Compound

Compound by and Compound bz are dissolved in a solvent such asdichloromethane or tetrahydrofuran, and a base such asdiazabicycloundecene, diazabicyclononane or diisopropylethylamine isadded thereto. They are reacted for 1 to 24 hours, preferably 1 to 12hours, at 20° C. to 60° C. Compound ca is thereby obtained.

Hydrochloric acid is added to the obtained Compound ca, and they arereacted for 1 to 12 hours, preferably 1 to 6 hours, while being heatedto reflux. Compound cb is thereby obtained.

A compound which forms a side chain such as the below-listed B134 may beprepared in the same manner as mentioned above.

Modification of Side Chain End

Compound cc is mixed with Compound cd which is suitable for the targetcompound and hydrazine in a solvent such as ethanol. They are reactedfor 1 to 48 hours, preferably 1 to 24 hours, at 0° C. to 100° C.,preferably 20° C. to 50° C. Compound ce is thereby obtained.

Modification of Side Chain End

Compound cf which is suitable for the target compound is mixed with1,4-dichloro-2-butyne and a base such as potassium carbonate, sodiumcarbonate, sodium hydride or potassium t-butoxide in a solvent such asdimethylformamide. They are reacted for 1 to 24 hours, preferably 1 to 4hours, at 0° C. to 100° C., preferably 20° C. to 70° C. Compound cg isthereby obtained.

Compound cg is mixed with a base such as sodium hydride, sodiumhydroxide, potassium hydroxide or potassium carbonate in the presence ofwater or a mixed solvent of water and a water-compatible solvent. Theyare reacted for 1 to 48 hours, preferably 1 to 24 hours, at 0° C. to100° C., preferably 20° C. to 50° C. Compound ch is thereby obtained.

This is mixed with a fluorinating reagent such as (diethylamino)sulfurtrifluoride or tetrabutylammonium fluoride in a solvent such asdichloromethane. They are reacted for 1 to 5 hours, preferably 2 to 4hours, at −20° C. to 50° C., preferably 0° C. to 30° C. Compound ci isthereby obtained.

Modification of Side Chain End

Compound cj which is suitable for the target compound is mixed withCompound ck and a tertiary amine such as triethylamine,diisopropylethylamine or dimethylaminopyridine in a solvent such aschloroform, dichloromethane, tetrahydrofuran or dioxane. They arereacted for 1 to 24 hours, preferably 1 to 4 hours, at 0° C. to 50° C.,preferably 20° C. to 40° C. Compound cl is thereby obtained.

This is mixed, if needed, with an appropriate amount of acetic acid,trifluoroacetic acid, hydrochloric acid, sulfuric acid, molecular sievesand the like in a solvent such as toluene or DMF. They are reacted for 1to 5 hours, preferably 2 to 4 hours, at 10° C. to 100° C., preferably20° C. to 40° C. Compound cm is thereby obtained.

Modification of Side Chain End

Compound cn is dissolved in methanol, and thionyl chloride is addedthereto. They are reacted for 1 to 12 hours, preferably 1 to 6 hours, at20° C. to 80° C. Compound co is thereby obtained.

The obtained Compound co is dissolved in an organic solvent such asdimethylformamide, dimethylacetamide or N-methylpyrrolidone, and acatalytic amount of tetrakis(triphenylphosphine)palladium (0) and zinccyanide are added thereto. They are reacted for 1 to 12 hours,preferably 1 to 6 hours, at 80° C. to 120° C. Compound cp is therebyobtained.

Modification of Side Chain End

Compound cq is mixed with a base such as potassium hydroxide or sodiumhydroxide in a mixed solvent of t-butyl alcohol and water. They arereacted for 1 to 12 hours, preferably 1 to 6 hours, at 20° C. to 80° C.Compound cr is thereby obtained.

The obtained Compound cr is mixed with a methylating agent such asmethyl iodide or dimethyl sulfate and a base such as potassium carbonateor cesium carbonate in a solvent such as dimethylformamide. They arereacted for 1 to 12 hours, preferably 1 to 6 hours, at 20° C. to 80° C.Compound cs is thereby obtained.

Modification of Side Chain End

Compound ct is dissolved in a solvent such as dimethylformamide, and1-bromo-2-butyne and a base such as potassium carbonate or cesiumcarbonate are added thereto at room temperature. They are reacted for 1to 24 hours, preferably 1 to 12 hours, at 0° C. to 80° C., preferably20° C. to 50° C. Compound cu is thereby obtained.

A compound which forms a side chain such as the below-listed B24 may beprepared in the same manner as mentioned above.

Modification of Side Chain End

Compound ap is dissolved in a solvent such as tetrahydrofuran ortoluene, and Compound cv and a base such as sodium hydride, potassiumt-butoxide or sodium methoxide are added thereto. They are reacted for 1to 24 hours, preferably 1 to 12 hours, at 0° C. to 80° C., preferably20° C. to 50° C. Compound cw is thereby obtained.

Modification of Side Chain End

Compound ap is dissolved in a solvent such as dimethylformamide, and abase such as potassium t-butoxide and propargyl alcohol are addedthereto. They are reacted for 1 to 24 hours, preferably 1 to 12 hours,at 0° C. to 80° C., preferably 20° C. to 50° C. Compound cx is therebyobtained.

A compound which forms a side chain such as the below-listed B60 may beprepared in the same manner as mentioned above.

Modification of Side Chain End

Compound ao is dissolved in a mixed solvent of water and an organicsolvent such as dimethylformamide, tetrahydrofuran or dimethoxyethane orthe like solvent. Compound cy, a catalytic amount of a catalyst such as1,1′-bis(diphenylphosphino)ferrocene palladium (II) chloride,tetrakis(triphenylphosphine)palladium ordichlorobis(triphenylphosphine)palladium, and a base such as potassiumcarbonate, sodium carbonate or sodium hydroxide are added thereto. Theyare reacted for 1 to 24 hours, preferably 1 to 12 hours, at 20° C. to100° C., preferably 50° C. to 100° C. Compound cz is thereby obtained.

A compound which forms a side chain such as the below-listed B80 may beprepared in the same manner as mentioned above.

Modification of Side Chain End

Compound ao is dissolved in a solvent such as dimethylformamide,dimethylacetamide or N-methylpyrrolidone. Compound da, copper (I)iodide, a catalytic amount of a catalyst such asbis(triphenylphosphine)palladium chloride ortetrakis(triphenylphosphine)palladium, and a base such as triethylamine,diethylamine, tri-n-butylamine, n-propylamine, n-butylamine ordiisopropylethylamine are added thereto. They are reacted for 1 to 24hours, preferably 1 to 12 hours, at 20° C. to 100° C., preferably 50° C.to 100° C. Compound db is thereby obtained.

This is dissolved in a solvent such as quinoline or toluene, and aLindlar catalyst is added thereto. They are reacted for 1 to 24 hours,preferably 1 to 12 hours, at 20° C. to 50° C. under hydrogen atmosphere.A mixture of Compound dc and Compound dd is thereby obtained. Compounddc and Compound dd can be separated and isolated by a common purifyingprocess.

Modification of Side Chain End

Compound ao is dissolved in a solvent such as dimethylformamide,dimethylacetamide or N-methylpyrrolidone, and sodium azide is addedthereto. They are reacted for 1 to 24 hours, preferably 1 to 12 hours,at 20° C. to 100° C., preferably 20° C. to 60° C. Compound de is therebyobtained.

Modification of Side Chain End

Compound ao is dissolved in a solvent such as dimethylformamide,dimethylacetamide or N-methylpyrrolidone, and Compound df is addedthereto. They are reacted for 1 to 24 hours, preferably 1 to 12 hours,at 20° C. to 100° C., preferably 20° C. to 60° C. Compound dg is therebyobtained.

Modification of Side Chain End

Compound ao is dissolved in a solvent such as dimethylformamide,dimethylacetamide or N-methylpyrrolidone, and 1H-1,2,3-triazole and abase such as potassium carbonate or sodium hydride are added thereto.They are reacted under microwave irradiation. Compound dh and Compounddi are thereby obtained. Compound dh and Compound di can be separatedand isolated by a common purifying method.

A compound which forms a side chain such as the below-listed B72 may beprepared in the same manner as mentioned above.

Modification of Side Chain End

Compound ao is mixed with Compound dj, a base such as sodium carbonate,potassium carbonate, cesium carbonate or sodium hydroxide, and acatalytic amount of a catalyst such astetrakis(triphenylphosphine)palladium (0) orbis(triphenylphosphine)palladium chloride in a mixed solvent of waterand an organic solvent such as dimethylformamide, tetrahydrofuran ordimethoxyethane. They are reacted for 1 to 12 hours, preferably 1 to 6hours, while being heated to reflux. Compound dk is thereby obtained.

This is dissolved in a solvent such as tetrahydrofuran, methanol orwater, or a mixed solvent thereof, and an aqueous solution of sodiumhydroxide, lithium hydroxide, potassium hydroxide or the like is addedthereto. They are reacted for 1 to 24 hours, preferably 1 to 12 hours,at 0° C. to 60° C., preferably 20° C. to 40° C. Compound dl is therebyobtained.

Modification of Side Chain End

Compound ao is mixed with Compound dm and a catalytic amount of acatalyst such as tetrakis(triphenylphosphine)palladium (0) orbis(triphenylphosphine)palladium chloride in a solvent such as toluene,tetrahydrofuran, dimethylformamide or N-methylpyrrolidone. They arereacted for 1 to 24 hours, preferably 1 to 12 hours, at 20° C. to 100°C., preferably 60° C. to 100° C. Compound do is thereby obtained.

In the case that a substituent which inhibits a reaction (e.g. hydroxy,mercapto, amino, formyl, carbonyl and carboxy) exists in any of theabove steps, the substituent may be preliminarily protected by, forexample, the method described in “Protective Groups in OrganicSynthesis, Theodora W Green (John Wiley & Sons)”, and the protectinggroup may be removed at a desired step.

Further, during all the above-mentioned steps, the order of the steps tobe performed may be appropriately changed. In each step, an intermediatemay be isolated and then used in the next step.

The compound according to the present invention is preferably asfollows.

1) A compound of formula (I′):

wherein

is any one of the following.

TABLE 1

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A12

A13

A14

A15

A16

A17

A18

A19

A20

A21

2) A compound of formula (I′):

wherein

is any one of the following.

TABLE 2

B1

B2

B3

B4

B5

B6

B7

B8

B9

B10

B11

B12

B13

B14

B15

B16

B17

B18

B19

B20

B21

B22

B23

B24

B25

B26

TABLE 3

B27

B28

B29

B30

B31

B32

B33

B34

B35

B36

B37

B38

B39

B40

B41

B42

B43

B44

B45

B46

B47

B48

B49

B50

B51

B52

TABLE 4

B53

B54

B55

B56

B57

B58

B59

B60

B61

B62

B63

B64

B65

B66

B67

B68

B69

B70

B71

B72

B73

B74

B75

B76

B77

B78

TABLE 5

B79

B80

B81

B82

B83

B84

B85

B86

B87

B88

B89

B90

B91

B92

B93

B94

B95

B96

B97

B98

B99

B100

B101

B102

B103

B104

TABLE 6

B105

B106

B107

B108

B109

B110

B111

B112

B113

B114

B115

B116

B117

B118

B119

B120

B121

B122

B123

B124

B125

B126

B127

B128

B129

B130

TABLE 7

B131

B132

B133

B134

B135

B136

B137

B138

B139

B140

B141

B142

B143

B144

B145

B146

3) A compound of formula (I′):

wherein the combination of

is as follows:

-   (A1, B1), (A1, B2), (A1, B3), (A1, B4), (A1, B5), (A1, B6), (A1,    B7), (A1, B8), (A1, B9), (A1, B10), (A1, B11), (A1, B12), (A1, B13),    (A1, B14), (A1, B15), (A1, B16), (A1, B17), (A1, B18), (A1, B19),    (A1, B20), (A1, B21), (A1, B22), (A1, B23), (A1, B24), (A1, B25),    (A1, B26), (A1, B27), (A1, B28), (A1, B29), (A1, B30), (A1, B31),    (A1, B32), (A1, B33), (A1, B34), (A1, B35), (A1, B36), (A1, B37),    (A1, B38), (A1, B39), (A1, B40), (A1, B41), (A1, B42), (A1, B43),    (A1, B44), (A1, B45), (A1, B46), (A1, B47), (A1, B48), (A1, B49),    (A1, B50), (A1, B51), (A1, B52), (A1, B53), (A1, B54), (A1, B55),    (A1, B56), (A1, B57), (A1, B58), (A1, B59), (A1, B60), (A1, B61),    (A1, B62), (A1, B63), (A1, B64), (A1, B65), (A1, B66), (A1, B67),    (A1, B68), (A1, B69), (A1, B70), (A1, B71), (A1, B72), (A1, B73),    (A1, B74), (A1, B75), (A1, B76), (A1, B77), (A1, B78), (A1, B79),    (A1, B80), (A1, B81), (A1, B82), (A1, B83), (A1, B84), (A1, B85),    (A1, B86), (A1, B87), (A1, B88), (A1, B89), (A1, B90), (A1, B91),    (A1, B92), (A1, B93), (A1, B94), (A1, B95), (A1, B96), (A1, B97),    (A1, B98), (A1, B99), (A1, B100), (A1, B101), (A1, B102), (A1,    B103), (A1, B104), (A1, B105), (A1, B106), (A1, B107), (A1, B108),    (A1, B109), (A1, B110), (A1, B111), (A1, B112), (A1, B113), (A1,    B114), (A1, B115), (A1, B116), (A1, B117), (A1, B118), (A1, B119),    (A1, B120), (A1, B121), (A1, B122), (A1, B123), (A1, B124), (A1,    B125), (A1, B126), (A1, B127), (A1, B128), (A1, B129), (A1, B130),    (A1, B131), (A1, B132), (A1, B133), (A1, B134), (A1, B135), (A1,    B136), (A1, B137), (A1, B138), (A1, B139), (A1, B140), (A1, B141),    (A1, B142), (A1, B143), (A1, B144), (A1, B145), (A1, B146),-   (A2, B1), (A2, B2), (A2, B3), (A2, B4), (A2, B5), (A2, B6), (A2,    B7), (A2, B8), (A2, B9), (A2, B10), (A2, B11), (A2, B12), (A2, B13),    (A2, B14), (A2, B15), (A2, B16), (A2, B17), (A2, B18), (A2, B19),    (A2, B20), (A2, B21), (A2, B22), (A2, B23), (A2, B24), (A2, B25),    (A2, B26), (A2, B27), (A2, B28), (A2, B29), (A2, B30), (A2, B31),    (A2, B32), (A2, B33), (A2, B34), (A2, B35), (A2, B36), (A2, B37),    (A2, B38), (A2, B39), (A2, B40), (A2, B41), (A2, B42), (A2, B43),    (A2, B44), (A2, B45), (A2, B46), (A2, B47), (A2, B48), (A2, B49),    (A2, B50), (A2, B51), (A2, B52), (A2, B53), (A2, B54), (A2, B55),    (A2, B56), (A2, B57), (A2, B58), (A2, B59), (A2, B60), (A2, B61),    (A2, B62), (A2, B63), (A2, B64), (A2, B65), (A2, B66), (A2, B67),    (A2, B68), (A2, B69), (A2, B70), (A2, B71), (A2, B72), (A2, B73),    (A2, B74), (A2, B75), (A2, B76), (A2, B77), (A2, B78), (A2, B79),    (A2, B80), (A2, B81), (A2, B82), (A2, B83), (A2, B84), (A2, B85),    (A2, B86), (A2, B87), (A2, B88), (A2, B89), (A2, B90), (A2, B91),    (A2, B92), (A2, B93), (A2, B94), (A2, B95), (A2, B96), (A2, B97),    (A2, B98), (A2, B99), (A2, B100), (A2, B101), (A2, B102), (A2,    B103), (A2, B104), (A2, B105), (A2, 3106), (A2, B107), (A2, B108),    (A2, B109), (A2, B110), (A2, B111), (A2, B112), (A2, B113), (A2,    B114), (A2, B115), (A2, B116), (A2, B117), (A2, B118), (A2, B119),    (A2, B120), (A2, B121), (A2, B122), (A2, B123), (A2, B124), (A2,    B125), (A2, B126), (A2, B127), (A2, B128), (A2, B129), (A2, B130),    (A2, B131), (A2, B132), (A2, B133), (A2, B134), (A2, B135), (A2,    B136), (A2, B137), (A2, B138), (A2, B139), (A2, B140), (A2, B141),    (A2, B142), (A2, B143), (A2, B144), (A2, B145), (A2, B146),-   (A3, B1), (A3, B2), (A3, B3), (A3, B4), (A3, B5), (A3, B6), (A3,    B7), (A3, B8), (A3, B9), (A3, B10), (A3, B11), (A3, B12), (A3, B13),    (A3, B14) (A3, B15), (A3, B16), (A3, B17), (A3, B18) (A3, B19) (A3,    B20), (A3, B21), (A3, B22), (A3, B23), (A3, B24), (A3, B25) (A3,    B26), (A3, B27) (A3, B28), (A3, B29), (A3, B30), (A3, B31) (A3,    B32), (A3, B33), (A3, B34) (A3, B35) (A3, B36), (A3, B37), (A3,    B38), (A3, B39), (A3, B40), (A3, B41), (A3, B42), (A3, B43), (A3,    B44), (A3, B45) (A3, B46), (A3, B47), (A3, B48), (A3, B49), (A3,    B50) (A3, B51) (A3, B52), (A3, B53), (A3, B54), (A3, B55) (A3, B56),    (A3, B57) (A3, B58), (A3, B59), (A3, B60), (A3, B61), (A3, B62) (A3,    B63), (A3, B64), (A3, B65), (A3, B66), (A3, B67) (A3, B68), (A3,    B69), (A3, B70) (A3, B71), (A3, B72), (A3, B73), (A3, B74), (A3,    B75), (A3, B76), (A3, B77), (A3, B78), (A3, B79), (A3, B80), (A3,    B81), (A3, B82), (A3, B83), (A3, B84), (A3, B85) (A3, B86) (A3, B87)    (A3, B88), (A3, B89) (A3, B90), (A3, B91), (A3, B92), (A3, B93),    (A3, B94), (A3, B95), (A3, B96), (A3, B97), (A3, B98), (A3, B99),    (A3, B100), (A3, B101), (A3, B102), (A3, B103), (A3, B104), (A3,    B105) (A3, B106), (A3, B107), (A3, B108), (A3, B109), (A3, B110),    (A3, B111), (A3, B112), (A3, B113), (A3, B114), (A3, B115), (A3,    B116), (A3, B117), (A3, B118), (A3, B119), (A3, B120), (A3, B121)    (A3, B122), (A3, B123), (A3, B124), (A3, B125), (A3, B126), (A3,    B127), (A3, B128), (A3, B129), (A3, B130), (A3, B131), (A3, B132),    (A3, B133), (A3, B134), (A3, B135), (A3, B136), (A3, B137), (A3,    B138), (A3, B139), (A3, B140), (A3, B141), (A3, B142), (A3, B143)    (A3, B144), (A3, B145), (A3, B146)-   (A4, B1) (A4, B2), (A4, B3), (A4, B4), (A4, B5), (A4, B6), (A4, B7),    (A4, B8), (A4, B9), (A4, B10), (A4, B11), (A4, B12), (A4, B13), (A4,    B14), (A4, B15) (A4, B16), (A4, B17), (A4, B18), (A4, B19) (A4,    B20), (A4, B21), (A4, B22), (A4, B23), (A4, B24), (A4, B25), (A4,    B26), (A4, B27) (A4, B28), (A4, B29) (A4, B30), (A4, B31), (A4, B32)    (A4, B33), (A4, B34) (A4, B35), (A4, B36), (A4, B37), (A4, B38) (A4,    B39), (A4, B40), (A4, B41), (A4, B42), (A4, B43), (A4, B44), (A4,    B45), (A4, B46), (A4, B47), (A4, B48), (A4, B49), (A4, B50), (A4,    B51), (A4, B52), (A4, B53), (A4, B54) (A4, B55), (A4, B56), (A4,    B57), (A4, B58), (A4, B59), (A4, B60), (A4, B61), (A4, B62), (A4,    B63), (A4, B64), (A4, B65), (A4, B66), (A4, B67), (A4, B68), (A4,    B69), (A4, B70), (A4, B71), (A4, B72), (A4, B73), (A4, B74), (A4,    B75), (A4, B76), (A4, B77), (A4, B78), (A4, B79), (A4, B80), (A4,    B81), (A4, B82), (A4, B83), (A4, B84), (A4, B85), (A4, B86), (A4,    B87), (A4, B88), (A4, B89), (A4, B90) (A4, B91), (A4, B92), (A4,    B93), (A4, B94), (A4, B95), (A4, B96), (A4, B97), (A4, B98), (A4,    B99), (A4, B100), (A4, B101), (A4, B102), (A4, B103), (A4, B104),    (A4, B105), (A4, B106), (A4, B107), (A4, B108), (A4, B109), (A4,    B110), (A4, B111) (A4, B112) (A4, B113), (A4, B114), (A4, B115),    (A4, B116), (A4, B117) (A4, B118), (A4, B119), (A4, B120), (A4,    B121), (A4, B122), (A4, B123), (A4, B124), (A4, B125), (A4, B126),    (A4, B127), (A4, B128) (A4, B129), (A4, B130), (A4, B131), (A4,    B132), (A4, B133), (A4, B134), (A4, B135) (A4, B136), (A4, B137),    (A4, B138), (A4, B139) (A4, B140), (A4, B141), (A4, B142), (A4,    B143), (A4, B144), (A4, B145), (A4, B146)-   (A5, B1), (A5, B2) (A5, B3), (A5, B4), (A5, B5) (A5, B6) (A5, B7),    (A5, B8), (A5, B9), (A5, B10), (A5, B11) (A5, B12), (A5, B13), (A5,    B14), (A5, B15), (A5, B16), (A5, B17), (A5, B18), (A5, B19), (A5,    B20), (A5, B21), (A5, B22), (A5, B23), (A5, B24) (A5, B25) (A5,    B26), (A5, B27), (A5, B28), (A5, B29), (A5, B30), (A5, B31), (A5,    B32), (A5, B33), (A5, B34), (A5, B35), (A5, B36), (A5, B37) (A5,    B38), (A5, B39), (A5, B40) (A5, B41), (A5, B42), (A5, B43), (A5,    B44), (A5, B45) (A5, B46), (A5, B47) (A5, B48), (A5, B49), (A5,    B50), (A5, B51), (A5, B52), (A5, B53), (A5, B54), (A5, B55), (A5,    B56), (A5, B57), (A5, B58), (A5, B59), (A5, B60), (A5, B61), (A5,    B62) (A5, B63), (A5, B64), (A5, B65), (A5, B66), (A5, B67), (A5,    B68) (A5, B69), (A5, B70), (A5, B71), (A5, B72), (A5, B73), (A5,    B74), (A5, B75), (A5, B76), (A5, B77), (A5, B78), (A5, B79), (A5,    B80), (A5, B81), (A5, B82), (A5, B83), (A5, B84), (A5, B85), (A5,    B86), (A5, B87), (A5, B88), (A5, B89), (A5, B90), (A5, B91), (A5,    B92), (A5, B93), (A5, B94), (A5, B95), (A5, B96), (A5, B97), (A5,    B98), (A5, B99), (A5, B100), (A5, B101), (A5, B102), (A5, B103),    (A5, B104), (A5, B105), (A5, B106), (A5, B107), (A5, B108), (A5,    B109), (A5, B110), (A5, B111), (A5, B112), (A5, B113), (A5, B114),    (A5, B115), (A5, B116), (A5, B117), (A5, B118), (A5, B119), (A5,    B120), (A5, B121), (A5, B122), (A5, B123), (A5, B124), (A5, B125),    (A5, B126), (A5, B127), (A5, B128), (A5, B129), (A5, B130), (A5,    B131), (A5, B132), (A5, B133), (A5, B134), (A5, B135), (A5, B136),    (A5, B137), (A5, B138), (A5, B139), (A5, B140), (A5, B141), (A5,    B142), (A5, B143), (A5, B144), (A5, B145), (A5, B146),-   (A6, B1), (A6, B2), (A6, B3), (A6, B4), (A6, B5), (A6, B6), (A6,    B7), (A6, B8), (A6, B9), (A6, B10), (A6, B11), (A6, B12), (A6, B13),    (A6, B14), (A6, B15), (A6, B16), (A6, B17), (A6, B18), (A6, B19),    (A6, B20), (A6, B21), (A6, B22), (A6, B23), (A6, B24), (A6, B25),    (A6, B26), (A6, B27), (A6, B28), (A6, B29), (A6, B30), (A6, B31),    (A6, B32), (A6, B33), (A6, B34), (A6, B35), (A6, B36), (A6, B37),    (A6, B38), (A6, B39), (A6, B40), (A6, B41), (A6, B42), (A6, B43),    (A6, B44), (A6, B45), (A6, B46), (A6, B47), (A6, B48), (A6, B49),    (A6, B50), (A6, B51), (A6, B52), (A6, B53), (A6, B54), (A6, B55),    (A6, B56), (A6, B57), (A6, B58), (A6, B59), (A6, B60), (A6, B61),    (A6, B62), (A6, B63), (A6, B64), (A6, B65), (A6, B66), (A6, B67),    (A6, B68), (A6, B69), (A6, B70), (A6, B71), (A6, B72), (A6, B73),    (A6, B74), (A6, B75), (A6, B76), (A6, B77), (A6, B78), (A6, B79),    (A6, B80), (A6, B81), (A6, B82), (A6, B83), (A6, B84), (A6, B85),    (A6, B86), (A6, B87), (A6, B88), (A6, B89), (A6, B90), (A6, B91),    (A6, B92), (A6, B93), (A6, B94), (A6, B95), (A6, B96), (A6, B97),    (A6, B98), (A6, B99), (A6, B100), (A6, B101), (A6, B102), (A6,    B103), (A6, B104), (A6, B105), (A6, B106), (A6, B107), (A6, B108),    (A6, B109), (A6, B110), (A6, B111), (A6, B112), (A6, B113), (A6,    B114), (A6, B115), (A6, B116), (A6, B117), (A6, B118), (A6, B119),    (A6, B120), (A6, B121), (A6, B122), (A6, B123), (A6, B124), (A6,    B125), (A6, B126), (A6, B127), (A6, B128) (A6, B129), (A6, B130),    (A6, B131), (A6, B132), (A6, B133), (A6, B134), (A6, B135), (A6,    B136), (A6, B137), (A6, B138), (A6, B139), (A6, B140) (A6, B141)    (A6, B142), (A6, B143), (A6, B144), (A6, B145), (A6, B146),-   (A7, B1), (A7, B2), (A7, B3), (A7, B4), (A7, B5), (A7, B6), (A7,    B7), (A7, B8), (A7, B9), (A7, B10), (A7, B11), (A7, B12), (A7, B13),    (A7, B14), (A7, B15), (A7, B16), (A7, B17), (A7, B18), (A7, B19),    (A7, B20), (A7, B21), (A7, B22), (A7, B23), (A7, B24) (A7, B25),    (A7, B26), (A7, B27), (A7, B28) (A7, B29), (A7, B30), (A7, B31),    (A7, B32), (A7, B33) (A7, B34), (A7, B35), (A7, B36), (A7, B37),    (A7, B38), (A7, B39), (A7, B40), (A7, B41) (A7, B42), (A7, B43),    (A7, B44) (A7, B45), (A7, B46), (A7, B47), (A7, B48), (A7, B49) (A7,    B50), (A7, B51), (A7, B52), (A7, B53), (A7, B54), (A7, B55), (A7,    B56), (A7, B57), (A7, B58), (A7, B59), (A7, B60), (A7, B61), (A7,    B62), (A7, B63), (A7, B64), (A7, B65), (A7, B66), (A7, B67) (A7,    B68), (A7, B69), (A7, B70), (A7, B71), (A7, B72), (A7, B73), (A7,    B74), (A7, B75), (A7, B76), (A7, B77), (A7, B78), (A7, B79), (A7,    B80), (A7, B81), (A7, B82), (A7, B83), (A7, B84), (A7, B85), (A7,    B86), (A7, B87), (A7, B88) (A7, B89), (A7, B90), (A7, B91), (A7,    B92), (A7, B93) (A7, B94), (A7, B95), (A7, B96), (A7, B97), (A7,    B98), (A7, B99), (A7, B100), (A7, B101), (A7, B102), (A7, B103),    (A7, B104), (A7, B105), (A7, B106), (A7, B107), (A7, B108), (A7,    B109), (A7, B110), (A7, B111), (A7, B112), (A7, B113), (A7, B114),    (A7, B115) (A7, B116), (A7, B117), (A7, B118), (A7, B119), (A7,    B120), (A7, B121) (A7, B122), (A7, B123), (A7, B124) (A7, B125),    (A7, B126), (A7, B127) (A7, B128) (A7, B129), (A7, B130), (A7,    B131), (A7, B132), (A7, B133), (A7, B134), (A7, B135) (A7, B136),    (A7, B137), (A7, B138), (A7, B139), (A7, B140), (A7, B141), (A7,    B142), (A7, B143), (A7, B144), (A7, B145), (A7, B146),-   (A8, B1), (A8, B2), (A8, B3), (A8, B4), (A8, B5), (A8, B6), (A8,    B7), (A8, B8), (A8, B9), (A8, B10), (A8, B11), (A8, B12), (A8, B13),    (A8, B14), (A8, B15), (A8, B16), (A8, B17), (A8, B18), (A8, B19),    (A8, B20), (A8, B21), (A8, B22), (A8, B23), (A8, B24), (A8, B25),    (A8, B26), (A8, B27), (A8, B28), (A8, B29), (A8, B30), (A8, B31),    (A8, B32), (A8, B33), (A8, B34), (A8, B35), (A8, B36), (A8, B37),    (A8, B38), (A8, B39), (A8, B40), (A8, B41), (A8, B42), (A8, B43),    (A8, B44), (A8, B45), (A8, B46), (A8, B47), (A8, B48), (A8, B49),    (A8, B50), (A8, B51), (A8, B52), (A8, B53), (A8, B54), (A8, B55),    (A8, B56), (A8, B57), (A8, B58), (A8, B59), (A8, B60), (A8, B61),    (A8, B62), (A8, B63), (A8, B64), (A8, B65), (A8, B66), (A8, B67),    (A8, B68), (A8, B69), (A8, B70), (A8, B71), (A8, B72), (A8, B73),    (A8, B74), (A8, B75), (A8, B76), (A8, B77), (A8, B78), (A8, B79),    (A8, B80), (A8, B81), (A8, B82), (A8, B83), (A8, B84), (A8, B85),    (A8, B86), (A8, B87), (A8, B88), (A8, B89), (A8, B90), (A8, B91),    (A8, B92), (A8, B93), (A8, B94), (A8, B95), (A8, B96), (A8, B97),    (A8, B98), (A8, B99), (A8, B100), (A8, B101), (A8, B102), (A8,    B103), (A8, B104), (A8, B105), (A8, B106), (A8, B107), (A8, B108),    (A8, B109), (A8, B110), (A8, B111), (A8, B112), (A8, B113), (A8,    B114), (A8, B115), (A8, B116), (A8, B117), (A8, B118), (A8, B119),    (A8, B120), (A8, B121), (A8, B122), (A8, B123), (A8, B124), (A8,    B125), (A8, B126), (A8, B127), (A8, B128), (A8, B129), (A8, B130),    (A8, B131), (A8, B132), (A8, B133), (A8, B134), (A8, B135), (A8,    B136), (A8, B137), (A8, B138), (A8, B139), (A8, B140), (A8, B141),    (A8, B142), (A8, B143), (A8, B144), (A8, B145), (A8, B146),-   (A9, B1), (A9, B2), (A9, B3), (A9, B4), (A9, B5), (A9, B6), (A9,    B7), (A9, B8), (A9, B9), (A9, B10), (A9, B11), (A9, B12), (A9, B13),    (A9, B14), (A9, B15), (A9, B16), (A9, B17), (A9, B18), (A9, B19),    (A9, B20), (A9, B21), (A9, B22), (A9, B23), (A9, B24), (A9, B25),    (A9, B26), (A9, B27), (A9, B28), (A9, B29), (A9, B30), (A9, B31),    (A9, B32), (A9, B33), (A9, B34), (A9, B35), (A9, B36), (A9, B37),    (A9, B38), (A9, B39), (A9, B40), (A9, B41), (A9, B42), (A9, B43),    (A9, B44), (A9, B45), (A9, B46), (A9, B47), (A9, B48), (A9, B49),    (A9, B50), (A9, B51), (A9, B52), (A9, B53), (A9, B54), (A9, B55),    (A9, B56), (A9, B57), (A9, B58), (A9, B59) (A9, B60) (A9, B61), (A9,    B62), (A9, B63), (A9, B64), (A9, B65), (A9, B66), (A9, B67), (A9,    B68), (A9, B69) (A9, B70), (A9, B71), (A9, B72) (A9, B73), (A9, B74)    (A9, B75) (A9, B76), (A9, B77) (A9, B78), (A9, B79) (A9, B80), (A9,    B81), (A9, B82), (A9, B83) (A9, B84), (A9, B85), (A9, B86), (A9,    B87), (A9, B88), (A9, B89), (A9, B90), (A9, B91) (A9, B92), (A9,    B93), (A9, B94), (A9, B95), (A9, B96), (A9, B97), (A9, B98), (A9,    B99), (A9, B100), (A9, B101), (A9, B102), (A9, B103), (A9, B104),    (A9, B105) (A9, B106), (A9, B107), (A9, B108), (A9, B109), (A9,    B110), (A9, B111), (A9, B112), (A9, B113), (A9, B114) (A9, B115),    (A9, B116) (A9, B117) (A9, B118), (A9, B119), (A9, B120), (A9,    B121), (A9, B122), (A9, B123), (A9, B124), (A9, B125), (A9, B126),    (A9, B127), (A9, B128), (A9, B129), (A9, B130), (A9, B131), (A9,    B132), (A9, B133), (A9, B134), (A9, B135), (A9, B136), (A9, B137),    (A9, B138), (A9, B139), (A9, B140), (A9, B141), (A9, B142), (A9,    B143), (A9, B144), (A9, B145), (A9, B146),-   (A10, B1), (A10, B2), (A10, B3), (A10, B4), (A10, B5), (A10, B6),    (A10, B7), (A10, B8), (A10, B9), (A10, B10), (A10, B11), (A10, B12),    (A10, B13), (A10, B14), (A10, B15), (A10, B16) (A10, B17), (A10,    B18), (A10, B19), (A10, B20), (A10, B21), (A10, B22), (A10, B23),    (A10, B24) (A10, B25), (A10, B26), (A10, B27) (A10, B28) (A10, B29),    (A10, B30), (A10, B31), (A10, B32), (A10, B33), (A10, B34), (A10,    B35), (A10, B36) (A10, B37), (A10, B38), (A10, B39), (A10, B40),    (A10, B41), (A10, B42), (A10, B43), (A10, B44), (A10, B45), (A10,    B46), (A10, B47) (A10, B48), (A10, B49), (A10, B50), (A10, B51),    (A10, B52), (A10, B53), (A10, B54), (A10, B55), (A10, B56) (A10,    B57), (A10, B58), (A10, B59), (A10, B60), (A10, B61), (A10, B62),    (A10, B63) (A10, B64), (A10, B65), (A10, B66), (A10, B67), (A10,    B68), (A10, B69), (A10, B70), (A10, B71), (A10, B72), (A10, B73),    (A10, B74), (A10, B75), (A10, B76), (A10, B77), (A10, B78), (A10,    B79), (A10, B80), (A10, B81), (A10, B82), (A10, B83), (A10, B84),    (A10, B85), (A10, B86), (A10, B87), (A10, B88), (A10, B89), (A10,    B90), (A10, B91), (A10, B92), (A10, B93), (A10, B94), (A10, B95),    (A10, B96), (A10, B97), (A10, B98), (A10, B99), (A10, B100), (A10,    B101), (A10, B102), (A10, B103), (A10, B104), (A10, B105), (A10,    B106), (A10, B107), (A10, B108), (A10, B109), (A10, B110), (A10,    B111), (A10, B112), (A10, B113), (A10, B114), (A10, B115), (A10,    B116), (A10, B117), (A10, B118), (A10, B119), (A10, B120), (A10,    B121), (A10, B122), (A10, B123), (A10, B124), (A10, B125), (A10,    B126), (A10, B127), (A10, B128), (A10, B129), (A10, B130), (A10,    B131), (A10, B132), (A10, B133), (A10, B134), (A10, B135), (A10,    B136), (A10, B137), (A10, B138), (A10, B139), (A10, B140), (A10,    B141), (A10, B142), (A10, B143), (A10, B144), (A10, B145), (A10,    B146),-   (A11, B1), (A11, B2), (A11, B3), (A11, B4), (A11, B5), (A11, B6),    (A11, B7), (A11, B8), (A11, B9), (A11, B10), (A11, B11), (A11, B12),    (A11, B13), (A11, B14), (A11, B15), (A11, B16), (A11, B17), (A11,    B18), (A11, B19), (A11, B20), (A11, B21), (A11, B22), (A11, B23),    (A11, B24), (A11, B25), (A11, B26), (A11, B27), (A11, B28), (A11,    B29), (A11, B30), (A11, B31), (A11, B32), (A11, B33), (A11, B34),    (A11, B35), (A11, B36), (A11, B37), (A11, B38), (A11, B39), (A11,    B40), (A11, B41), (A11, B42), (A11, B43), (A11, B44), (A11, B45),    (A11, B46), (A11, B47), (A11, B48), (A11, B49), (A11, B50), (A11,    B51), (A11, B52), (A11, B53), (A11, B54), (A11, B55), (A11, B56),    (A11, B57), (A11, B58), (A11, B59), (A11, B60), (A11, B61), (A11,    B62), (A11, B63), (A11, B64), (A11, B65), (A11, B66), (A11, B67),    (A11, B68), (A11, B69), (A11, B70), (A11, B71), (A11, B72), (A11,    B73), (A11, B74), (A11, B75), (A11, B76), (A11, B77), (A11, B78),    (A11, B79), (A11, B80), (A11, B81), (A11, B82), (A11, B83), (A11,    B84), (A11, B85), (A11, B86), (A11, B87), (A11, B88), (A11, B89),    (A11, B90), (A11, B91), (A11, B92), (A11, B93), (A11, B94), (A11,    B95), (A11, B96), (A11, B97), (A11, B98), (A11, B99), (A11, B100),    (A11, B101), (A11, B102), (A11, B103), (A11, B104), (A11, B105),    (A11, B106), (A11, B107), (A11, B108), (A11, B109), (A11, B110),    (A11, B111), (A11, B112), (A11, B113), (A11, B114), (A11, B115),    (A11, B116), (A11, B117), (A11, B118), (A11, B119), (A11, B120),    (A11, B121), (A11, B122), (A11, B123), (A11, B124), (A11, B125),    (A11, B126), (A11, B127), (A11, B128), (A11, B129), (A11, B130),    (A11, B131), (A11, B132), (A11, B133), (A11, B134), (A11, B135),    (A11, B136), (A11, B137), (A11, B138), (A11, B139), (A11, B140),    (A11, B141), (A11, B142), (A11, B143), (A11, B144), (A11, B145),    (A11, B146),-   (A12, B1), (A12, B2), (A12, B3), (A12, B4), (A12, B5), (A12, B6),    (A12, B7), (A12, B8), (A12, B9), (A12, B10), (A12, B11), (A12, B12),    (A12, B13), (A12, B14), (A12, B15), (A12, B16), (A12, B17), (A12,    B18), (A12, B19), (A12, B20), (A12, B21), (A12, B22), (A12, B23),    (A12, B24), (A12, B25), (A12, B26), (A12, B27), (A12, B28), (A12,    B29), (A12, B30), (A12, B31), (A12, B32), (A12, B33), (A12, B34),    (A12, B35), (A12, B36), (A12, B37), (A12, B38), (A12, B39), (A12,    B40), (A12, B41), (A12, B42), (A12, B43), (A12, B44), (A12, B45),    (A12, B46), (A12, B47), (A12, B48), (A12, B49), (A12, B50), (A12,    B51), (A12, B52), (A12, B53), (A12, B54), (A12, B55), (A12, B56),    (A12, B57), (A12, B58), (A12, B59), (A12, B60), (A12, B61), (A12,    B62), (A12, B63), (A12, B64), (A12, B65), (A12, B66), (A12, B67),    (A12, B68), (A12, B69), (A12, B70), (A12, B71), (A12, B72), (A12,    B73), (A12, B74), (A12, B75), (A12, B76), (A12, B77), (A12, B78),    (A12, B79), (A12, B80), (A12, B81), (A12, B82), (A12, B83), (A12,    B84), (A12, B85), (A12, B86), (A12, B87), (A12, B88), (A12, B89),    (A12, B90), (A12, B91), (A12, B92), (A12, B93), (A12, B94), (A12,    B95), (A12, B96), (A12, B97), (A12, B98), (A12, B99), (A12, B100),    (A12, B101), (A12, B102), (A12, B103), (A12, B104), (A12, B105),    (A12, B106), (A12, B107), (A12, B108), (A12, B109), (A12, B110),    (A12, B111), (A12, B112), (A12, B113), (A12, B114), (A12, B115),    (A12, B116), (A12, B117), (A12, B118), (A12, B119), (A12, B120),    (A12, B121), (A12, B122), (A12, B123), (A12, B124), (A12, B125),    (A12, B126), (A12, B127), (A12, B128), (A12, B129), (A12, B130),    (A12, B131), (A12, B132), (A12, B133), (A12, B134), (A12, B135),    (A12, B136), (A12, B137), (A12, B138), (A12, B139), (A12, B140),    (A12, B141), (A12, B142), (A12, B143), (A12, B144), (A12, B145),  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(A13, B80), (A13, B81), (A13, B82), (A13, B83), (A13,    B84), (A13, B85), (A13, B86), (A13, B87), (A13, B88), (A13, B89),    (A13, B90), (A13, B91), (A13, B92), (A13, B93), (A13, B94), (A13,    B95), (A13, B96), (A13, B97), (A13, B98), (A13, B99), (A13, B100),    (A13, B101), (A13, B102), (A13, B103), (A13, B104), (A13, B105),    (A13, B106), (A13, B107), (A13, B108), (A13, B109), (A13, B110),    (A13, B111), (A13, B112), (A13, B113), (A13, B114), (A13, B115),    (A13, B116), (A13, B117), (A13, B118), (A13, B119), (A13, B120),    (A13, B121), (A13, B122), (A13, B123), (A13, B124), (A13, B125),    (A13, B126), (A13, B127), (A13, B128), (A13, B129), (A13, B130),    (A13, B131), (A13, B132), (A13, B133), (A13, B134), (A13, B135),    (A13, B136), (A13, B137), (A13, B138), (A13, B139), (A13, B140),    (A13, B141), (A13, B142), (A13, B143), (A13, B144), (A13, B145),    (A13, B146),-   (A14, B1), (A14, B2), (A14, B3), (A14, B4), (A14, B5), (A14, B6),    (A14, B7), (A14, B8), (A14, B9), (A14, B10), (A14, B11), (A14, B12),    (A14, B13), (A14, B14), (A14, B15), (A14, B16), (A14, B17), (A14,    B18), (A14, B19) (A14, B20), (A14, B21), (A14, B22), (A14, B23),    (A14, B24), (A14, B25), (A14, B26) (A14, B27), (A14, B28), (A14,    B29), (A14, B30), (A14, B31), (A14, B32), (A14, B33), (A14, B34),    (A14, B35), (A14, B36) (A14, B37), (A14, B38), (A14, B39), (A14,    B40), (A14, B41), (A14, B42), (A14, B43), (A14, B44), (A14, B45),    (A14, B46), (A14, B47), (A14, B48), (A14, B49), (A14, B50), (A14,    B51) (A14, B52), (A14, B53), (A14, B54) (A14, B55), (A14, B56),    (A14, B57), (A14, B58), (A14, B59), (A14, B60), (A14, B61), (A14,    B62), (A14, B63), (A14, B64), (A14, B65), (A14, B66), (A14, B67),    (A14, B68), (A14, B69), (A14, B70), (A14, B71), (A14, B72), (A14,    B73), (A14, B74), (A14, B75), (A14, B76), (A14, B77), (A14, B78),    (A14, B79), (A14, B80), (A14, B81), (A14, B82), (A14, B83), (A14,    B84), (A14, B85), (A14, B86), (A14, B87), (A14, B88), (A14, B89),    (A14, 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(A15, B21), (A15, B22), (A15, B23),    (A15, B24), (A15, B25), (A15, B26), (A15, B27), (A15, B28), (A15,    B29), (A15, B30), (A15, B31), (A15, B32), (A15, B33), (A15, B34),    (A15, B35), (A15, B36), (A15, B37), (A15, B38), (A15, B39), (A15,    B40), (A15, B41), (A15, B42), (A15, B43), (A15, B44), (A15, B45),    (A15, B46), (A15, B47), (A15, B48), (A15, B49), (A15, B50), (A15,    B51), (A15, B52), (A15, B53), (A15, B54), (A15, B55), (A15, B56),    (A15, B57), (A15, B58), (A15, B59), (A15, B60), (A15, B61), (A15,    B62), (A15, B63), (A15, B64), (A15, B65), (A15, B66), (A15, B67),    (A15, B68), (A15, B69), (A15, B70), (A15, B71), (A15, B72), (A15,    B73), (A15, B74), (A15, B75), (A15, B76), (A15, B77), (A15, B78),    (A15, B79), (A15, B80), (A15, B81), (A15, B82), (A15, B83), (A15,    B84), (A15, B85), (A15, B86), (A15, B87), (A15, B88), (A15, B89),    (A15, B90), (A15, B91), (A15, B92), (A15, B93), (A15, B94), (A15,    B95), (A15, B96), (A15, B97), (A15, B98), (A15, B99), (A15, B100),    (A15, B101), (A15, B102), (A15, B103), (A15, B104), (A15, B105),    (A15, B106), (A15, B107), (A15, B108), (A15, B109), (A15, B110),    (A15, B111), (A15, B112), (A15, B113), (A15, B114), (A15, B115),    (A15, B116), (A15, B117), (A15, B118), (A15, B119), (A15, B120),    (A15, B121), (A15, B122), (A15, B123), (A15, B124), (A15, B125),    (A15, B126), (A15, B127), (A15, B128), (A15, B129), (A15, B130),    (A15, B131), (A15, B132), (A15, B133), (A15, B134), (A15, B135),    (A15, B136), (A15, B137), (A15, B138), (A15, B139), (A15, B140),    (A15, B141), (A15, B142), (A15, B143), (A15, B144), (A15, B145),    (A15, B146),-   (A16, B1), (A16, B2), (A16, B3), (A16, B4), (A16, B5), (A16, B6),    (A16, B7), (A16, B8), (A16, B9), (A16, B10), (A16, B11), (A16, B12),    (A16, B13), (A16, B14), (A16, B15), (A16, B16), (A16, B17), (A16,    B18), (A16, B19), (A16, B20), (A16, B21), (A16, B22), (A16, B23),    (A16, B24), (A16, B25), (A16, B26), (A16, B27), (A16, B28), (A16,    B29), (A16, B30), (A16, B31), (A16, B32), (A16, B33), (A16, B34),    (A16, B35), (A16, B36), (A16, B37), (A16, B38), (A16, B39), (A16,    B40), (A16, B41), (A16, B42), (A16, B43), (A16, B44), (A16, B45),    (A16, B46), (A16, B47), (A16, B48), (A16, B49), (A16, B50), (A16,    B51), (A16, B52), (A16, B53), (A16, B54), (A16, B55), (A16, B56),    (A16, B57), (A16, B58), (A16, B59), (A16, B60), (A16, B61), (A16,    B62), (A16, B63), (A16, B64), (A16, B65), (A16, B66), (A16, B67),    (A16, B68), (A16, B69), (A16, B70), (A16, B71), (A16, B72), (A16,    B73), (A16, B74), (A16, B75), (A16, B76), (A16, B77), (A16, B78),    (A16, B79), (A16, B80), (A16, B81), (A16, B82), (A16, B83), (A16,    B84), (A16, B85), (A16, B86), (A16, B87), (A16, B88), (A16, B89),    (A16, B90), (A16, B91), (A16, B92), (A16, B93), (A16, B94), (A16,    B95), (A16, B96), (A16, B97), (A16, B98), (A16, B99), (A16, B100),    (A16, B101), (A16, B102), (A16, B103), (A16, B104), (A16, B105),    (A16, B106), (A16, B107), (A16, B108), (A16, B109), (A16, B110),    (A16, B111), (A16, B112), (A16, B113), (A16, B114), (A16, B115),    (A16, B116), (A16, B117), (A16, B118), (A16, B119), (A16, B120),    (A16, B121), (A16, B122), (A16, B123), (A16, B124), (A16, B125),    (A16, B126), (A16, B127), (A16, B128), (A16, B129), (A16, B130),    (A16, B131), (A16, B132), (A16, B133), (A16, B134), (A16, B135),    (A16, B136), (A16, B137), (A16, B138), (A16, B139), (A16, B140),    (A16, B141), (A16, B142), (A16, B143), (A16, B144), (A16, B145),    (A16, B146),-   (A17, B1), (A17, B2), (A17, B3), (A17, B4), (A17, B5), (A17, B6),    (A17, B7), (A17, B8), (A17, B9), (A17, B10), (A17, B11), (A17, B12),    (A17, B13), (A17, B14), (A17, B15), (A17, B16), (A17, B17), (A17,    B18), (A17, B19), (A17, B20), (A17, B21), (A17, B22), (A17, B23),    (A17, B24), (A17, B25), (A17, B26), (A17, B27), (A17, B28), (A17,    B29), (A17, B30), (A17, B31), (A17, B32), (A17, B33), (A17, B34),    (A17, B35), (A17, B36), (A17, B37), (A17, B38), (A17, B39), (A17,    B40), (A17, B41), (A17, B42), (A17, B43), (A17, B44), (A17, B45),    (A17, B46), (A17, B47), (A17, B48), (A17, B49), (A17, B50), (A17,    B51), (A17, B52), (A17, B53), (A17, B54), (A17, B55), (A17, B56),    (A17, B57), (A17, B58), (A17, B59), (A17, B60), (A17, B61), (A17,    B62), (A17, B63), (A17, B64), (A17, B65), (A17, B66), (A17, B67),    (A17, B68), (A17, B69), (A17, B70), (A17, B71), (A17, B72), (A17,    B73), (A17, B74), (A17, B75), (A17, B76), (A17, B77), (A17, B78),    (A17, B79), (A17, B80), (A17, B81), (A17, B82), (A17, B83), (A17,    B84), (A17, B85), (A17, B86), (A17, B87), (A17, B88), (A17, B89),    (A17, B90), (A17, B91), (A17, B92), (A17, B93), (A17, B94), (A17,    B95), (A17, B96), (A17, B97), (A17, B98), (A17, B99), (A17, B100),    (A17, B101), (A17, B102), (A17, B103), (A17, B104), (A17, B105),    (A17, B106), (A17, B107), (A17, B108), (A17, B109), (A17, B110),    (A17, B111), (A17, B112), (A17, B113), (A17, B114), (A17, B115),    (A17, B116), (A17, B117), (A17, B118), (A17, B119), (A17, B120),    (A17, B121), (A17, B122), (A17, B123), (A17, B124), (A17, B125),    (A17, B126), (A17, B127), (A17, B128), (A17, B129), (A17, B130),    (A17, B131), (A17, B132), (A17, B133), (A17, B134), (A17, B135),    (A17, B136), (A17, B137), (A17, B138), (A17, B139), (A17, B140),    (A17, B141), (A17, B142), (A17, B143), (A17, B144), (A17, B145),    (A17, B146),-   (A18, B1), (A18, B2), (A18, B3), (A18, B4), (A18, B5), (A18, B6),    (A18, B7), (A18, B8), (A18, B9), (A18, B10), (A18, B11), (A18, B12),    (A18, B13), (A18, B14), (A18, B15), (A18, B16), (A18, B17), (A18,    B18), (A18, B19), (A18, B20), (A18, B21), (A18, B22), (A18, B23),    (A18, B24), (A18, B25), (A18, B26), (A18, B27), (A18, B28), (A18,    B29), (A18, B30), (A18, B31), (A18, B32), (A18, B33), (A18, B34),    (A18, B35), (A18, B36), (A18, B37), (A18, B38), (A18, B39), (A18,    B40), (A18, B41), (A18, B42), (A18, B43), (A18, B44), (A18, B45),    (A18, B46), (A18, B47), (A18, B48), (A18, B49), (A18, B50), (A18,    B51), (A18, B52), (A18, B53), (A18, B54), (A18, B55), (A18, B56),    (A18, B57), (A18, B58), (A18, B59), (A18, B60), (A18, B61), (A18,    B62), (A18, B63), (A18, B64), (A18, B65), (A18, B66), (A18, B67),    (A18, B68), (A18, B69), (A18, B70), (A18, B71), (A18, B72), (A18,    B73), (A18, B74), (A18, B75), (A18, B76), (A18, B77), (A18, B78),    (A18, B79), (A18, B80), (A18, B81), (A18, B82), (A18, B83), (A18,    B84), (A18, B85), (A18, B86), (A18, B87), (A18, B88), (A18, B89),    (A18, B90), (A18, B91), (A18, B92), (A18, B93), (A18, B94), (A18,    B95), (A18, B96), (A18, B97), (A18, B98), (A18, B99), (A18, B100),    (A18, B101), (A18, B102), (A18, B103), (A18, B104), (A18, B105),    (A18, B106), (A18, B107), (A18, B108), (A18, B109), (A18, B110),    (A18, B111), (A18, B112), (A18, B113), (A18, B114), (A18, B115),    (A18, B116), (A18, B117), (A18, B118), (A18, B119), (A18, B120),    (A18, B121), (A18, B122), (A18, B123), (A18, B124), (A18, B125),    (A18, B126), (A18, B127), (A18, B128), (A18, B129), (A18, B130),    (A18, B131), (A18, B132), (A18, B133), (A18, B134), (A18, B135),    (A18, B136), (A18, B137), (A18, B138), (A18, B139), (A18, B140),    (A18, B141), (A18, B142), (A18, B143), (A18, B144), (A18, B145),    (A18, B146),-   (A19, B1), (A19, B2), (A19, B3), (A19, B4), (A19, B5), (A19, B6),    (A19, B7), (A19, B8), (A19, B9), (A19, B10), (A19, B11), (A19, B12),    (A19, B13), (A19, B14), (A19, B15), (A19, B16), (A19, B17), (A19,    B18), (A19, B19), (A19, B20), (A19, B21), (A19, B22), (A19, B23),    (A19, B24), (A19, B25), (A19, B26), (A19, B27), (A19, B28), (A19,    B29), (A19, B30), (A19, B31), (A19, B32), (A19, B33), (A19, B34),    (A19, B35), (A19, B36), (A19, B37), (A19, B38), (A19, B39), (A19,    B40), (A19, B41), (A19, B42), (A19, B43), (A19, B44), (A19, B45),    (A19, B46), (A19, B47), (A19, B48), (A19, B49), (A19, B50), (A19,    B51), (A19, B52), (A19, B53), (A19, B54), (A19, B55), (A19, B56),    (A19, B57), (A19, B58), (A19, B59), (A19, B60), (A19, B61), (A19,    B62), (A19, B63), (A19, B64), (A19, B65), (A19, B66), (A19, B67),    (A19, B68), (A19, B69), (A19, B70), (A19, B71), (A19, B72), (A19,    B73), (A19, B74), (A19, B75), (A19, B76), (A19, B77), (A19, B78),    (A19, B79), (A19, B80), (A19, B81), (A19, B82), (A19, B83), (A19,    B84), (A19, B85), (A19, B86), (A19, B87), (A19, B88), (A19, B89),    (A19, B90), (A19, B91), (A19, B92), (A19, B93), (A19, B94), (A19,    B95), (A19, B96), (A19, B97), (A19, B98), (A19, B99), (A19, B100),    (A19, B101), (A19, B102), (A19, B103), (A19, B104), (A19, B05),    (A19, B106), (A19, B107), (A19, B108), (A19, B109), (A19, B110),    (A19, B111), (A19, B112), (A19, B113), (A19, B114), (A19, B115),    (A19, B116), (A19, B117), (A19, B118), (A19, B119), (A19, B120),    (A19, B121), (A19, B122), (A19, B123), (A19, B124), (A19, B125),    (A19, B126), (A19, B127), (A19, B128), (A19, B129), (A19, B130),    (A19, B131), (A19, B132), (A19, B133), (A19, B134), (A19, B135),    (A19, B136), (A19, B137), (A19, B138), (A19, B139), (A19, B140),    (A19, B141), (A19, B142), (A19, B143), (A19, B144), (A19, B145),    (A19, B146),-   (A20, B1), (A20, B2), (A20, B3), (A20, B4), (A20, B5), (A20, B6),    (A20, B7), (A20, B8), (A20, B9), (A20, B10), (A20, B11), (A20, B12),    (A20, B13), (A20, B14), (A20, B15), (A20, B16), (A20, B17), (A20,    B18), (A20, B19), (A20, B20), (A20, B21), (A20, B22), (A20, B23),    (A20, B24), (A20, B25), (A20, B26), (A20, B27), (A20, B28), (A20,    B29), (A20, B30), (A20, B31), (A20, B32), (A20, B33), (A20, B34),    (A20, B35), (A20, B36), (A20, B37), (A20, B38), (A20, B39), (A20,    B40), (A20, B41), (A20, B42), (A20, B43), (A20, B44), (A20, B45),    (A20, B46), (A20, B47), (A20, B48), (A20, B49), (A20, B50), (A20,    B51), (A20, B52), (A20, B53), (A20, B54), (A20, B55), (A20, B56),    (A20, B57), (A20, B58), (A20, B59), (A20, B60), (A20, B61), (A20,    B62), (A20, B63), (A20, B64), (A20, B65), (A20, B66), (A20, B67),    (A20, B68), (A20, B69), (A20, B70), (A20, B71), (A20, B72), (A20,    B73), (A20, B74), (A20, B75), (A20, B76), (A20, B77), (A20, B78),    (A20, B79), (A20, B80), (A20, B81), (A20, B82), (A20, B83), (A20,    B84), (A20, B85), (A20, B86), (A20, B87), (A20, B88), (A20, B89),    (A20, B90), (A20, B91), (A20, B92), (A20, B93), (A20, B94), (A20,    B95), (A20, B96), (A20, B97), (A20, B98), (A20, B99), (A20, B100),    (A20, B101), (A20, B102), (A20, B103), (A20, B104), (A20, B105),    (A20, B106), (A20, B107), (A20, B108), (A20, B109), (A20, B110),    (A20, B111), (A20, B112), (A20, B113), (A20, B114), (A20, B115),    (A20, B116), (A20, B117), (A20, B118), (A20, B119), (A20, B120),    (A20, B121), (A20, B122), (A20, B123), (A20, B124), (A20, B125),    (A20, B126), (A20, B127), (A20, B128), (A20, B129), (A20, B130),    (A20, B131), (A20, B132), (A20, B133), (A20, B134), (A20, B135),    (A20, B136), (A20, B137), (A20, B138), (A20, B139), (A20, B140),    (A20, B141), (A20, B142), (A20, B143), (A20, B144), (A20, B145),    (A20, B146),-   (A21, B1), (A21, B2), (A21, B3), (A21, B4), (A21, B5), (A21, B6),    (A21, B7), (A21, B8), (A21, B9), (A21, B10), (A21, B11), (A21, B12),    (A21, B13), (A21, B14), (A21, B15), (A21, B16), (A21, B17), (A21,    B18), (A21, B19), (A21, B20), (A21, B21), (A21, B22), (A21, B23),    (A21, B24), (A21, B25), (A21, B26), (A21, B27), (A21, B28), (A21,    B29), (A21, B30), (A21, B31), (A21, B32), (A21, B33), (A21, B34),    (A21, B35), (A21, B36), (A21, B37), (A21, B38), (A21, B39), (A21,    B40), (A21, B41), (A21, B42), (A21, B43), (A21, B44), (A21, B45),    (A21, B46), (A21, B47), (A21, B48), (A21, B49), (A21, B50), (A21,    B51), (A21, B52), (A21, B53), (A21, B54), (A21, B55), (A21, B56),    (A21, B57), (A21, B58), (A21, B59), (A21, B60), (A21, B61), (A21,    B62), (A21, B63), (A21, B64), (A21, B65), (A21, B66), (A21, B67),    (A21, B68), (A21, B69), (A21, B70), (A21, B71), (A21, B72), (A21,    B73), (A21, B74), (A21, B75), (A21, B76), (A21, B77), (A21, B78),    (A21, B79), (A21, B80), (A21, B81), (A21, B82), (A21, B83), (A21,    B84), (A21, B85), (A21, B86), (A21, B87), (A21, B88), (A21, B89),    (A21, B90), (A21, B91), (A21, B92), (A21, B93), (A21, B94), (A21,    B95), (A21, B96), (A21, B97), (A21, B98), (A21, B99), (A21, B100),    (A21, B101), (A21, B102), (A21, B103), (A21, B104), (A21, B105),    (A21, B106), (A21, B107), (A21, B108), (A21, B109), (A21, B110),    (A21, B111), (A21, B112), (A21, B113), (A21, B114), (A21, B115),    (A21, B116), (A21, B117), (A21, B118), (A21, B119), (A21, B120),    (A21, B121), (A21, B122), (A21, B123), (A21, B124), (A21, B125),    (A21, B126), (A21, B127), (A21, B128), (A21, B129), (A21, B130),    (A21, B131), (A21, B132), (A21, B133), (A21, B134), (A21, B135),    (A21, B136), (A21, B137), (A21, B138), (A21, B139), (A21, B140),    (A21, B141), (A21, B142), (A21, B143), (A21, B144), (A21, B145),    (A21, B146).

In particular, the following compounds are preferable.

TABLE 8 Com- pound No. Structural formula 1

2

3

4

5

6

7

8

TABLE 9 Com- pound No. Structural formula 9

10

11

12

13

14

15

16

TABLE 10 Compound No. Structural formula 17

18

19

20

21

22

23

24

TABLE 11 Compound No. Structural formula 25

26

27

28

29

30

31

32

TABLE 12 Compound No. Structural formula 33

34

35

36

37

38

39

40

TABLE 13 Compound No. Structural formula 41

42

43

44

45

46

47

48

TABLE 14 Compound No. Structural formula 49

50

51

52

53

54

55

56

TABLE 15 Compound No. Structural formula 57

58

59

60

61

62

63

64

TABLE 16 Compound No. Structural formula 65

66

67

68

69

70

71

72

TABLE 17 Com- pound No. Structural formula 73

74

75

76

77

78

79

80

TABLE 18 Com- pound No. Structural formula 81

82

83

84

85

86

87

88

TABLE 19 Compound No. Structural formula 89

90

91

92

93

94

95

96

TABLE 20 Compound No. Structural formula 97

98

99

100

101

102

103

104

TABLE 21 Compound No. Structural formula 105

106

107

108

109

110

111

112

TABLE 22 Com- pound No. Structural formula 113

114

115

116

117

118

119

120

TABLE 23 Com- pound No. Structural formula 121

122

123

124

125

126

127

128

TABLE 24 Com- pound No. Structural formula 129

130

131

132

133

134

135

136

TABLE 25 Com- pound No. Structural formula 137

138

139

140

141

142

143

144

TABLE 26 Compound No. Structural formula 145

146

TABLE 27 Com- pound No. Structural formula 147

148

149

150

151

152

153

154

TABLE 28 Com- pound No. Structural formula 155

156

157

158

159

160

161

162

TABLE 29 Compound No. Structural formula 163

164

165

166

167

168

169

170

TABLE 30 Compound No. Structural formula 171

172

173

174

175

176

177

178

TABLE 31 Compound No. Structural formula 179

180

181

182

183

184

185

186

TABLE 32 Compound No. Structural formula 187

188

189

190

191

192

193

194

TABLE 33 Compound No. Structural formula 195

196

197

198

199

200

201

202

TABLE 34 Compound No. Structural formula 203

204

205

206

207

208

209

210

TABLE 35 Compound No. Structural formula 211

212

213

214

215

216

217

218

TABLE 36 Com- pound No. Structural formula 219

220

221

222

223

224

225

226

TABLE 37 Com- pound No. Structural formula 227

228

229

230

231

232

233

234

TABLE 38 Com- pound No. Structural formula 235

236

237

238

239

240

241

242

TABLE 39 Com- pound No. Structural formula 243

244

245

246

247

248

249

250

TABLE 40 Com- pound No. Structural formula 251

252

253

254

255

256

257

258

TABLE 41 Com- pound No. Structural formula 259

260

261

262

263

264

265

266

TABLE 42 Com- pound No. Structural formula 267

268

269

270

271

272

273

274

TABLE 43 Com- pound No. Structural formula 275

276

277

278

279

280

281

282

TABLE 44 Com- pound No. Structural formula 283

284

285

286

287

288

289

290

TABLE 45 Compound No. Structural formula 291

292

TABLE 46 Com- pound No. Structural formula 293

294

295

296

297

298

299

300

TABLE 47 Compound No. Structural formula 301

302

303

304

305

306

307

308

TABLE 48 Compound No. Structural formula 309

310

311

312

313

314

315

316

TABLE 49 Compound No. Structural formula 317

318

319

320

321

322

323

324

TABLE 50 Compound No. Structural formula 325

326

327

328

329

330

331

332

TABLE 51 Compound No. Structural formula 333

334

335

336

337

338

339

340

TABLE 52 Compound No. Structural formula 341

342

343

344

345

346

347

348

TABLE 53 Compound No. Structural formula 349

350

351

352

353

354

355

356

TABLE 54 Compound No. Structural formula 357

358

359

360

361

362

363

364

TABLE 55 Com- pound No. Structural formula 365

366

367

368

369

370

371

372

TABLE 56 Com- pound No. Structural formula 373

374

375

376

377

378

379

380

TABLE 57 Compound No. Structural formula 381

382

383

384

385

386

387

388

TABLE 58 Compound No. Structural formula 389

390

391

392

393

394

395

396

TABLE 59 Compound No. Structural formula 397

398

399

400

401

402

403

404

TABLE 60 Compound No. Structural formula 405

406

407

408

409

410

411

412

TABLE 61 Compound No. Structural formula 413

414

415

416

417

418

419

420

TABLE 62 Com- pound No. Structural formula 421

422

423

424

425

426

427

428

TABLE 63 Com- pound No. Structural formula 429

430

431

432

433

434

435

436

TABLE 64 Com- pound No. Structural formula 437

438

4) A compound of formula (I′):

wherein A is optionally substituted benzenediyl (the substituent is oneor more groups selected from lower alkyl, lower alkenyl and thesubstituent group α), and B is optionally substituted pyrazinediyl (thesubstituent is one or more groups selected from lower alkyl, loweralkenyl, lower alkynyl, lower alkenyloxy, lower alkynyloxy and thesubstituent group α).

Preferable among the above compounds is a compound in which A isoptionally substituted benzenediyl (the substituent is one or moregroups selected from halogen, lower alkyl, lower alkoxy, loweralkylthio, amino and lower alkylamino) and B is optionally substitutedpyrazinediyl (the substituent is one or more groups selected fromhalogen, lower alkyl, lower alkenyl, lower alkoxy, lower alkoxy loweralkoxy and lower alkynyloxy).

More preferable among the above compounds is a compound in which A isunsubstituted benzenediyl and B is optionally substituted pyrazinediyl(the substituent is one or more groups selected from halogen, loweralkyl, lower alkenyl, lower alkoxy, lower alkoxy lower alkoxy and loweralkynyloxy).

Further, the compound of the present invention is preferably as follows.

5) A compound of formula (II′):

wherein

is any one of the following.

TABLE 65

E1 

E2 

E3 

E4 

E5 

E6 

E7 

E8 

E9 

E10

E11

E12

E13

E14

E15

E16

E17

E18

E19

E20

E21

6) A compound of formula (II′):

wherein

is any one of the following.

TABLE 66

G1 

G2 

G3 

G4 

G5 

G6 

G7 

G8 

G9 

G10

G11

G12

G13

G14

G15

G16

G17

G18

G19

G20

G21

G22

G23

G24

G25

G26

TABLE 67

G27

G28

G29

G30

G31

G32

G33

G34

G35

G36

G37

G38

G39

G40

G41

G42

G43

G44

G45

G46

G47

G48

G49

G50

G51

G52

TABLE 68

G53

G54

G55

G56

G57

G58

G59

G60

G61

G62

G63

G64

G65

G66

G67

G68

G69

G70

G71

G72

G73

G74

G75

G76

G77

G78

TABLE 69

G79

G80

G81

G82

G83

G84

G85

G86

G87

G88

G89

G90

G91

G92

G93

G94

G95

G96

G97

G98

G99

 G100

 G101

 G102

 G103

 G104

TABLE 70

G105

G106

G107

G108

G109

G110

G111

G112

G113

G114

G115

G116

G117

G118

G119

G120

G121

G122

G123

G124

G125

G126

G127

G128

G129

G130

TABLE 71

G131

G132

G133

G134

G135

G136

G137

G138

G139

G140

G141

G142

G143

G144

G145

G146

7) A compound of formula (II′):

wherein the combination of

is any one of the following:

-   (E1, G1), (E1, G2), (E1, G3), (E1, G4), (E1, G5), (E1, G6), (E1,    G7), (E1, G8), (E1, G9), (E1, G10), (E1, G11), (E1, G12), (E1, G13),    (E1, G14), (E1, G15), (E1, G16), (E1, G17), (E1, G18), (E1, G19),    (E1, G20), (E1, G21), (E1, G22), (E1, G23), (E1, G24), (E1, G25),    (E1, G26), (E1, G27), (E1, G28), (E1, G29), (E1, G30), (E1, G31),    (E1, G32), (E1, G33), (E1, G34), (E1, G35), (E1, G36), (E1, G37),    (E1, G38), (E1, G39), (E1, G40), (E1, G41), (E1, G42), (E1, G43),    (E1, G44), (E1, G45), (E1, G46), (E1, G47), (E1, G48), (E1, G49),    (E1, G50), (E1, G51), (E1, G52), (E1, G53), (E1, G54), (E1, G55),    (E1, G56), (E1, G57), (E1, G58), (E1, G59), (E1, G60), (E1, G61),    (E1, G62), (E1, G63), (E1, G64), (E1, G65), (E1, G66), (E1, G67),    (E1, G68), (E1, G69), (E1, G70), (E1, G71), (E1, G72), (E1, G73),    (E1, G74), (E1, G75), (E1, G76), (E1, G77), (E1, G78), (E1, G79),    (E1, G80), (E1, G81), (E1, G82), (E1, G83), (E1, G84), (E1, G85),    (E1, G86), (E1, G87), (E1, G88), (E1, G89), (E1, G90), (E1, G91),    (E1, G92), (E1, G93), (E1, G94), (E1, G95), (E1, G96), (E1, G97),    (E1, G98), (E1, G99), (E1, G100), (E1, G101), (E1, G102), (E1,    G103), (E1, G104), (E1, G105), (E1, G106), (E1, G107), (E1, G108),    (E1, G109), (E1, G110), (E1, G111), (E1, G112), (E1, G113), (E1,    G114), (E1, G115), (E1, G116), (E1, G117), (E1, G118), (E1, G119),    (E1, G120), (E1, G121), (E1, G122), (E1, G123), (E1, G124), (E1,    G125), (E1, G126), (E1, G127), (E1, G128), (E1, G129), (E1, G130),    (E1, G131), (E1, G132), (E1, G133), (E1, G134), (E1, G135), (E1,    G136), (E1, G137), (E1, G138), (E1, G139), (E1, G140), (E1, G141),    (E1, G142), (E1, G143), (E1, G144), (E1, G145), (E1, G146),-   (E2, G1) (E2, G2), (E2, G3), (E2, G4), (E2, G5), (E2, G6), (E2, G7),    (E2, G8), (E2, G9), (E2, G10) (E2, G11) (E2, G12), (E2, G13), (E2,    G14), (E2, G15) (E2, G16), (E2, G17), (E2, G18), (E2, G19) (E2,    G20), (E2, G21), (E2, G22), (E2, G23), (E2, G24), (E2, G25), (E2,   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G69), (E20, G70), (E20, G71), (E20, G72), (E20,    G73), (E20, G74), (E20, G75), (E20, G76), (E20, G77), (E20, G78),    (E20, G79), (E20, G80), (E20, G81), (E20, G82), (E20, G83), (E20,    G84), (E20, G85), (E20, G86), (E20, G87), (E20, G88), (E20, G89),    (E20, G90), (E20, G91), (E20, G92), (E20, G93), (E20, G94), (E20,    G95), (E20, G96), (E20, G97), (E20, G98), (E20, G99), (E20, G100),    (E20, G101), (E20, G102), (E20, G103), (E20, G104), (E20, G105),    (E20, G106), (E20, G107), (E20, G108), (E20, G109), (E20, G110),    (E20, G111), (E20, G112), (E20, G113), (E20, G114), (E20, G115),    (E20, G116), (E20, G117), (E20, G118), (E20, G119), (E20, G120),    (E20, G121), (E20, G122), (E20, G123), (E20, G124), (E20, G125),    (E20, G126), (E20, G127), (E20, G128), (E20, G129), (E20, G130),    (E20, G131), (E20, G132), (E20, G133), (E20, G134), (E20, G135),    (E20, G136), (E20, G137), (E20, G138), (E20, G139), (E20, G140),    (E20, G141), (E20, G142), (E20, G143), (E20, G144), (E20, G145),    (E20, G146),-   (E21, G1), (E21, G2), (E21, G3), (E21, G4), (E21, G5), (E21, G6),    (E21, G7), (E21, G8), (E21, G9), (E21, G10), (E21, G11), (E21, G12),    (E21, G13), (E21, G14), (E21, G15), (E21, G16), (E21, G17), (E21,    G18), (E21, G19), (E21, G20), (E21, G21), (E21, G22), (E21, G23),    (E21, G24), (E21, G25), (E21, G26), (E21, G27), (E21, G28), (E21,    G29), (E21, G30), (E21, G31), (E21, G32), (E21, G33), (E21, G34),    (E21, G35), (E21, G36), (E21, G37), (E21, G38), (E21, G39), (E21,    G40), (E21, G41), (E21, G42), (E21, G43), (E21, G44), (E21, G45),    (E21, G46), (E21, G47), (E21, G48), (E21, G49), (E21, G50), (E21,    G51), (E21, G52), (E21, G53), (E21, G54), (E21, G55), (E21, G56),    (E21, G57), (E21, G58), (E21, G59), (E21, G60), (E21, G61), (E21,    G62), (E21, G63), (E21, G64), (E21, G65), (E21, G66), (E21, G67),    (E21, G68), (E21, G69), (E21, G70), (E21, G71), (E21, G72), (E21,    G73), (E21, G74), (E21, G75), (E21, G76), (E21, G77), (E21, G78),    (E21, G79), (E21, G80), (E21, G81), (E21, G82), (E21, G83), (E21,    G84), (E21, G85), (E21, G86), (E21, G87), (E21, G88), (E21, G89),    (E21, G90), (E21, G91), (E21, G92), (E21, G93), (E21, G94), (E21,    G95), (E21, G96), (E21, G97), (E21, G98), (E21, G99), (E21, G100),    (E21, G101), (E21, G102), (E21, G103), (E21, G104), (E21, G105),    (E21, G106), (E21, G107), (E21, G108), (E21, G109), (E21, G110),    (E21, G111), (E21, G112), (E21, G113), (E21, G114), (E21, G115),    (E21, G116), (E21, G117), (E21, G118), (E21, G119), (E21, G120),    (E21, G121), (E21, G122), (E21, G123), (E21, G124), (E21, G125),    (E21, G126), (E21, G127), (E21, G128), (E21, G129), (E21, G130),    (E21, G131), (E21, G132), (E21, G133), (E21, G134), (E21, G135),    (E21, G136), (E21, G137), (E21, G138), (E21, G139), (E21, G140),    (E21, G141), (E21, G142), (E21, G143), (E21, G144), (E21, G145),    (E21, G146).

In particular, the following compounds are preferable.

TABLE 72 Com- pound No. Structural formula 439

440

441

442

443

444

445

446

TABLE 73 Com- pound No. Structural formula 447

448

449

450

451

452

453

454

TABLE 74 Compound No. Structural formula 455

456

457

458

459

460

461

462

TABLE 75 Compound No. Structural formula 463

464

465

466

467

468

469

470

TABLE 76 Compound No. Structural formula 471

472

473

474

475

476

477

478

TABLE 77 Compound No. Structural formula 479

480

481

482

483

484

485

486

TABLE 78 Compound No. Structural formula 487

488

489

490

491

492

493

494

TABLE 79 Com- pound No. Structural formula 495

496

497

498

499

500

501

502

TABLE 80 Compound No. Structural formula 503

504

505

506

507

508

509

510

TABLE 81 Com- pound No. Structural formula 511

512

513

514

515

516

517

518

TABLE 82 Com- pound No. Structural formula 519

520

521

522

523

524

525

526

TABLE 83 Com- pound No. Structural formula 527

528

529

530

531

532

533

534

TABLE 84 Com- pound No. Structural formula 535

536

537

538

539

540

541

542

TABLE 85 Com- pound No. Structural formula 543

544

545

546

547

548

549

550

TABLE 86 Com- pound No. Structural formula 551

552

553

554

555

556

557

558

TABLE 87 Com- pound No. Structural formula 559

560

561

562

563

564

565

566

TABLE 88 Com- pound No. Structural formula 567

568

569

570

571

572

573

574

TABLE 89 Com- pound No. Structural formula 575

576

577

578

579

580

581

582

TABLE 90 Com- pound No. Structural formula 583

584

TABLE 91 Com- pound No. Structural formula 585

586

587

588

589

590

591

592

TABLE 92 Com- pound No. Structural formula 593

594

595

596

597

598

599

600

TABLE 93 Compound No. Structural formula 601

602

603

604

605

606

607

608

TABLE 94 Compound No. Structural formula 609

610

611

612

613

614

615

616

TABLE 95 Compound No. Structural formula 617

618

619

620

621

622

623

624

TABLE 96 Compound No. Structural formula 625

626

627

628

629

630

631

632

TABLE 97 Compound No. Structural formula 633

634

635

636

637

638

639

640

TABLE 98 Com- pound No. Structural formula 641

642

643

644

645

646

647

648

TABLE 99 Compound No. Structural formula 649

650

651

652

653

654

655

656

TABLE 100 Com- pound No. Structural formula 657

658

659

660

661

662

663

664

TABLE 101 Com- pound No. Structural formula 665

666

667

668

669

670

671

672

TABLE 102 Com- pound No. Structural formula 673

674

675

676

677

678

679

680

TABLE 103 Com- pound No. Structural formula 681

682

683

684

685

686

687

688

TABLE 104 Com- pound No. Structural formula 689

690

691

692

693

694

695

696

TABLE 105 Com- pound No. Structural formula 697

698

699

700

701

702

703

704

TABLE 106 Com- pound No. Structural formula 705

706

707

708

709

710

711

712

TABLE 107 Com- pound No. Structural formula 713

714

715

716

717

718

719

720

TABLE 108 Com- pound No. Structural formula 721

722

723

724

725

726

727

728

TABLE 109 Com- pound No. Structural formula 729

730

TABLE 110 Com- pound No. Structural formula 731

732

733

734

735

736

737

738

TABLE 111 Com- pound No. Structural formula 739

740

741

742

743

744

745

746

TABLE 112 Compound No. Structural formula 747

748

749

750

751

752

753

754

TABLE 113 Compound No. Structural formula 755

756

757

758

759

760

761

762

TABLE 114 Compound No. Structural formula 763

764

765

766

767

768

769

770

TABLE 115 Compound No. Structural formula 771

772

773

774

775

776

777

778

TABLE 116 Compound No. Structural formula 779

780

781

782

783

784

785

786

TABLE 117 Compound No. Structural formula 787

788

789

790

791

792

793

794

TABLE 118 Compound No. Structural formula 795

796

797

798

799

800

801

802

TABLE 119 Compound No. Structural formula 803

804

805

806

807

808

809

810

TABLE 120 Com - pound No. Structural formula 811

812

813

814

815

816

817

818

TABLE 121  Compound No.  Structural formula 819

820

821

822

823

824

825

826

TABLE 122 Com- pound No. Structural formula 827

828

829

830

831

832

833

834

TABLE 123 Com- pound No. Structural formula 835

836

837

838

839

840

841

842

TABLE 124 Compound No. Structural formula 843

844

845

846

847

848

849

850

TABLE 125 Compound No. Structural formula 851

852

853

854

855

856

857

858

TABLE 126 Compound No. Structural formula 859

860

861

862

863

864

865

866

TABLE 127 Compound No. Structural formula 867

868

869

870

871

872

873

874

TABLE 128  Compound No.  Structural formula 875

876

8) A compound of formula (II′):

wherein E is optionally substituted benzenediyl (the substituent is oneor more groups selected from lower alkyl, lower alkenyl and thesubstituent group α) and G is optionally substituted pyrazinediyl (thesubstituent is one or more groups selected from lower alkyl, loweralkenyl, lower alkynyl, lower alkenyloxy, lower alkynyloxy and thesubstituent group α).

Preferable among the above compounds is a compound in which E isoptionally substituted benzenediyl (the substituent is one or moregroups selected from halogen, lower alkyl, lower alkoxy, loweralkylthio, amino and lower alkylamino) and G is optionally substitutedpyrazinediyl (the substituent is one or more groups selected fromhalogen, lower alkyl, lower alkenyl, lower alkoxy, lower alkoxy loweralkoxy and lower alkynyloxy).

Further, preferable among the above compounds is a compound in which Eis unsubstituted benzenediyl and G is optionally substitutedpyrazinediyl (the substituent is one or more groups selected fromhalogen, lower alkyl, lower alkenyl, lower alkoxy, lower alkoxy loweralkoxy and lower alkynyloxy).

The compound according to the present invention is useful againstdiseases induced by production, secretion or deposition of amyloid-βproteins. For example, the compound is effective for treating and/orpreventing, and ameliorating symptoms of diseases such as dementia ofthe Alzheimer's type (e.g. Alzheimer's disease and senile dementia ofthe Alzheimer's type), Down syndrome, memory disorder, prion diseases(e.g. Creutzfeldt-Jakob disease), mild cognitive impairment (MCI),hereditary cerebral hemorrhage with amyloidosis-Dutch type, cerebralamyloid angiopathy, other degenerative dementia, vascular anddegenerative mixed dementia, dementia associated with Parkinson'sdisease, dementia associated with progressive supranuclear palsy,dementia associated with corticobasal degeneration, Alzheimer's diseasewith diffuse Lewy bodies, age-related macular degeneration, Parkinson'sdisease and amyloid angiopathy.

The compound according to the present invention has effects such as ahigh inhibitory activity on BACE1, in particular, an inhibitory activityon production of amyloid-β in cell lines and high selectivity againstother enzymes. Thus, the compound can be used as pharmaceuticals withreduced side effects. Further, the compound of the present invention canbe pharmaceuticals which achieves a wider safety margin for side effectsby preparing the compound as an optically active substance with anappropriate stereochemical structure. In addition, the compoundaccording to the present invention has various advantages such as highmetabolic stability, high solubility, a long half life, low hERG channelinhibition and low CYP inhibition. Thus, the compound can be excellentpharmaceuticals.

When the compound according to the present invention is administered,other medicaments (e.g. other therapeutic agents for Alzheimer's diseasesuch as acetylcholine esterase) may be used in combination. For example,anti-dementia drugs such as donepezil hydrochloride, tacrine,galantamine, rivastigmine, zanapezil, memantine and vinpocetine may beused in combination.

When the compound according to the present invention is administered tohumans, it may be orally administered as powders, granules, tablets,capsules, pills, liquids and the like, or may be parenterallyadministered as injections, suppositories, transdermal systems, inhalantand the like. In addition, if needed, an effective amount of the presentcompound may be mixed with pharmaceutical additives such as diluents,binders, humectants, disintegrants and lubricants suitable for itsdosage form, and thereby the compound may be formed into apharmaceutical preparation.

The dosage depends on disease conditions, the route of administration,the age or the weight of a patient. In the case of oral administrationto adults, the dosage is generally 0.1 μg to 1 g/day, and preferably0.01 to 200 mg/day. In the case of parenteral administration, the dosageis generally 1 μg to 10 g/day, and preferably 0.1 to 2 g/day.

EXAMPLES

The present invention will be described in more detail with referenceto, but not limited to, the following examples and test examples.

In the examples, meaning of each abbreviation is as follows.

Et: ethyl

Me: methyl

Boc: t-butoxycarbonyl

HATU: O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluroniumhexafluorophosphate

Ac: acetyl

TFA: trifluoroacetic acid

Reference Example 1 Synthesis of Fused Cyclic Compound (6)

Compound (1) (1000 mg), dioxane (2 ml), and 28% aqueous ammonia solution(2 ml) were mixed with each other, and the mixture was stirred for 19hours at 50° C. The reaction solution was concentrated under reducedpressure. Water was added to the residue, and the residue was extractedwith ethyl acetate. The extract was dried with anhydrous magnesiumsulfate, and the solvent was distilled away under reduced pressure. Theresidue was subjected to silica gel column chromatography. Compound (2)(476 mg) was thereby obtained.

¹H-NMR (CDCl₃) δ: 1.63 (9H, s), 5.04 (2H, br s), 8.03 (1H, s), 8.69 (1H,s).

Compound (2) (475 mg) was mixed with 3-bromo-2-oxopropanoic acid ethylester (1582 mg) in dimethoxyethane (4 ml), and the mixture was stirredfor 2.5 hours at 75° C. The reaction solution was diluted withdiisopropyl ether. Insoluble matter was collected by filtration, rinsedwith diisopropyl ether and hexane, and dried under reduced pressure. Theresidue was stirred for 2 hours at 95° C. in t-butyl alcohol (7.5 ml).The solvent was distilled away under reduced pressure, and the residuewas subjected to silica gel column chromatography. Compound (3) (709 mg)was thereby obtained.

¹H-NMR (CDCl₃) δ: 1.46 (3H, t, J=7.1 Hz), 1.66 (9H, s), 4.50 (2H, q,J=7.1 Hz), 8.35 (1H, s), 8.89 (1H, s), 9.24 (1H, s).

Compound (3) (270 mg), dioxane (3 ml), and 28% aqueous ammonia solution(2.5 ml) were mixed with each other. The mixture was stirred for 6 hoursat 50° C. in a pressure bottle, and the reaction solution wasconcentrated under reduced pressure. A crude product of Compound (4)(249 mg) was thereby obtained.

¹H-NMR of crude product (CDCl₃) δ: 1.67 (9H, s), 5.79 (1H, br s), 8.35(1H, s), 8.90 (1H, s), 9.15 (1H, s).

Compound (4) (146 mg), triethylamine (282 mg), and dimethylaminopyridine(6.8 mg) were mixed with each other in tetrahydrofuran (9 ml), and2,2,2-trichloroacetyl chloride (253 mg) was added to the mixture at 0°C. They were then stirred for 2 hours at room temperature. The reactionsolution was diluted with ethyl acetate, and a saturated aqueoussolution of sodium hydrogen carbonate was added thereto to terminate thereaction. The reaction product was extracted with ethyl acetate. Theextract was dried with anhydrous magnesium sulfate, and the solvent wasdistilled away under reduced pressure. A crude product of Compound (5)(99 mg) was thereby obtained.

Compound (5) (95 mg) was dissolved in chloroform (3 ml). Trifluoroaceticacid (1330 mg) was added thereto, and the mixture was stirred for 4hours at room temperature. The reaction solution was concentrated underreduced pressure, and thereby a crude product was obtained. The residuewas suspended with ethyl acetate and diisopropyl ether. Insoluble matterwas collected by filtration and rinsed with diisopropyl ether. Theresidue was dried under reduced pressure. A composition of Compound (6)was thereby obtained.

A compound which forms a side chain such as the above-listed B136 may beprepared in the same manner as mentioned above.

Example 1 Synthesis of Compound 35

Step 1

Compound (8) (14.93 g) was dissolved in tetrahydrofuran (100 ml). A 1.6M solution of n-butyl lithium in hexane (4.4 g) was dropwise addedthereto at −78° C., and the mixture was stirred for 30 minutes. Compound(7) (10 g) was added thereto over 30 minutes, and the mixture wasfurther stirred for 30 minutes. The mixture was warmed up to roomtemperature, and further stirred for 18 hours. The solvent wasconcentrated under reduced pressure, and the residue was purified bychromatography. Compound (9) (7.5 g) was thereby obtained.

¹H-NMR (CDCl₃) δ: 1.3 (3H, t), 2.6 (3H, s), 4.2-4.3 (2H, q), 6.2 (1H,s), 7.5 (1H, t), 7.8 (1H, d), 8.2 (1H, d), 8.3 (1H, s).

Step 2

Compound (9) (20.0 g) was dissolved in methanol (200 ml) and water (70ml). Sodium hydroxide (10.2 g) was added thereto, and they were stirredovernight at room temperature. Methanol was removed under reducedpressure, and 1 M hydrochloric acid was added to the product so as tocontrol the pH to 7. Then, the reaction product was extracted with ethylacetate. The organic phase was rinsed with water and saturated aqueousNaCl solution, and dried with anhydrous sodium sulfate. The solvent wasthen distilled away under reduced pressure. Petroleum ether was added tothe residue, and the precipitated solid was collected by filtration.Compound (10) (15 g) was thereby obtained.

¹H-NMR (DMSO-d₆) δ: 2.6 (3H, s), 6.3 (1H, s), 8.3-7.9 (4H, m), 12.4 (1H,s).

Step 3

Compound (10) (0.7 g) was suspended in dichloromethane (5 ml). Oxalylchloride (0.4 ml), and then a small amount of dimethylformamide wereadded thereto at room temperature, and the mixture was stirred for 2hours at room temperature. Trifluoroacetic anhydride (13.6 ml) andpyridine (7.8 ml) were added thereto, and they were stirred for 30minutes. The solvent was then distilled away under reduced pressure. Theresidue of Compound (11) (0.7 g) was thereby obtained, and it was usedin the following step without purification.

Step 4

Cyanogen bromide (1.17 g) was dissolved in tetrahydrofuran (10 ml).Potassium carbonate (2.17 g), and then a 1 M solution of methylamine intetrahydrofuran (11 ml) were added thereto at −68° C., and the mixturewas stirred for 2 hours at −65° C. The reaction solution was filteredthrough Celite under nitrogen stream. A solution of Compound (11) (1.0g) in tetrahydrofuran (2 ml) and diisopropylethylamine (1.15 ml) wereadded to the filtrate at −65° C., and the mixture was stirred for 4hours at the same temperature. The solvent was distilled away underreduced pressure, and the residue was purified by chromatography.Compound (12) (550 mg) was thereby obtained.

¹H-NMR (CDCl₃) δ: 2.6 (3H, s), 3.3 (3H, s), 6.8 (1H, s), 7.6 (1H, t),7.8 (1H, d), 8.3 (2H, s).

Step 5

Compound (12) (1.7 g) was dissolved in dimethylformamide (4 ml).4-Methoxybenzylamine (2.37 g) was added thereto at room temperature, andthe mixture was stirred overnight. Cold water was added thereto, and themixture was extracted with ethyl acetate. The organic phase was rinsedwith water and saturated aqueous NaCl solution, and was dried withanhydrous sodium sulfate. Then, the solvent was distilled away underreduced pressure, and the residue was purified by chromatography.Compound (13) (1.32 g) was thereby obtained.

¹H-NMR (CDCl₃) δ: 1.7 (3H, s), 3.0 (1H, s), 3.1 (1H, s), 3.2 (3H, s),3.8 (3H, s), 4.4-4.3 (1H, d), 4.8 (1H, d), 6.9 (2H, d), 7.1 (2H, d),7.4-7.5 (2H, m), 8.1-8.2 (2H, m).

Step 6

Compound (13) (2.5 g) was suspended in acetonitrile (50 ml) and water(12.5 ml). Diammonium cerium nitrate (10.75 g) was added thereto at roomtemperature, and the mixture was stirred for 4 hours at 85° C. Thereaction solution was added to ethyl acetate (200 ml) and a 2 M aqueoussodium hydroxide solution (50 ml). Insoluble matter was filtered outthrough Celite, and the filtrate was extracted with ethyl acetate. Theorganic phase was rinsed with water and saturated aqueous NaCl solution,and dried with anhydrous sodium sulfate. Then, the solvent was distilledaway under reduced pressure, and the residue was purified bychromatography. Compound (14) (967 mg) was thereby obtained.

¹H-NMR (CDCl₃) δ: 1.52 (3H, s), 2.81, 2.89 (2H, ABq, J=16.1 Hz), 3.20(3H, s), 4.5 (2H, brs), 7.51 (1H, t, J=8.0 Hz), 7.72-7.80 (2H, m), 8.11(1H, ddd, J=8.0, 2.1, 1.2 Hz), 8.39 (1H, t, J=2.1 Hz).

Step 7

Compound (14) (500 mg) was dissolved in dichloromethane (5 ml) andtetrahydrofuran (5 ml). Di-t-butyl dicarbonate (1.11 ml) and4-dimethylaminopyridine (47 mg) were added thereto, and the mixture wasstirred for 45 minutes at room temperature. The solvent was distilledaway under reduced pressure, and the residue was purified bychromatography. Compound (15) (683 mg) was thereby obtained.

¹H-NMR (CDCl₃) δ: 1.49 (9H, s), 1.53 (9H, s), 1.58 (3H, s), 2.70, 2.87(2H, ABq, J=16.2 Hz), 3.14 (3H, s), 7.55 (1H, t, J=8.1 Hz), 7.84 (1H,ddd, J=8.1, 2.1, 1.2 Hz), 8.15 (1H, ddd, J=8.0, 2.1, 1.2 Hz), 8.41 (1H,t, J=2.1 Hz).

Step 8

Compound (15) (553 mg) was dissolved in methanol (5.5 ml). 10%Palladium-carbon (111 mg) was added thereto, and the mixture was stirredfor 4 hours at room temperature under hydrogen atmosphere.Palladium-carbon was filtered out through Celite, and the filtrate wasdistilled away under reduced pressure. The residue of Compound (16) (345mg) was thereby obtained.

¹H-NMR (CDCl₃) δ: 1.44 (9H, s), 1.50 (3H, s), 1.51 (9H, s), 2.75 (2H,s), 3.11 (3H, s), 3.69 (2H, s), 6.58 (1H, ddd, J=7.8, 2.1, 1.2 Hz), 6.81(1H, ddd, J=7.8, 2.1, 1.2 Hz), 6.87 (1H, t, J=2.1 Hz), 7.13 (1H, t,J=7.8 Hz).

Step 9

5-Methoxypyrazine-2-carboxylic acid (37 mg) was dissolved indimethylformamide (0.8 ml). HATU (91 mg), triethylamine (0.038 ml), andthen a solution of Compound (16) (88 mg) in dimethylformamide (0.7 ml)were added thereto, and the mixture was stirred for 3 hours at roomtemperature. Ethyl acetate and water were added thereto, and the mixturewas extracted with ethyl acetate. The organic phase was rinsed withwater and saturated aqueous NaCl solution, and then dried with anhydroussodium sulfate. The solvent was then distilled away under reducedpressure. The residue of Compound (17) (143 mg) was thereby obtained,and was used in the following step without purification.

Step 10

The residue of Compound (17) (143 mg) was dissolved in dichloromethane(1.4 ml), and TFA (0.7 ml) was added thereto in ice-cold conditions. Themixture was stirred for 1 hour and 15 minutes at room temperature, andthen the solvent was distilled away under reduced pressure. Ethylacetate and a 5% solution of potassium carbonate were added thereto, andthe mixture was extracted with ethyl acetate. The organic phase wasrinsed with water and saturated aqueous NaCl solution, and dried withanhydrous sodium sulfate. The solvent was then distilled away underreduced pressure, and the residue was purified by chromatography.Compound 35 (25 mg) was thereby obtained.

¹H-NMR (DMSO-d₆) δ: 1.38 (3H, s), 2.65-2.95 (2H, m), 2.99 (3H, s), 4.03(3H, s), 5.94 (2H, brs), 7.18 (1H, d, J=8.1 Hz), 7.29 (1H, t, J=8.1 Hz),7.74 (1H, t, J=8.1 Hz), 7.89 (1H, s), 8.42 (1H, d, J=1.1 Hz), 8.90 (1H,d, J=1.1 Hz), 10.38 (1H, s).

Example 2 Synthesis of Compound 482

Step 1

Potassium t-butoxide (4.25 g) and 2-butyn-1-ol (10 ml) were added toice-cold dimethylformamide (10 ml) under nitrogen stream. Compound (18)(1.5 g) was further added thereto. The temperature of the mixture wasraised to room temperature, and the mixture was heated and stirred for 8hours at 65° C. The temperature of the mixture was lowered to roomtemperature, and 2 M aqueous hydrochloric acid was added thereto. Thesolvent was then distilled away under reduced pressure. Thereafter,water was added and ultrasound treatment was performed. Compound (19)(1.37 g) was thereby obtained as solid matter.

¹H-NMR (DMSO-d₆) δ: 1.84 (3H, s), 5.04 (2H, s), 8.39 (1H, s), 8.79 (1H,s)

Step 2

Dimethylformamide (2 ml) was added to Compound (19) (104 mg) and HATU(205 mg), and then Compound (20) (73 mg) and triethylamine (92 μl) wereadded thereto. The mixture was stirred for 1 hour at room temperature,and the reaction solution was concentrated under reduced pressure.Thereafter, methanol was added and ultrasound treatment was performed.Compound (21) (112 mg) was thereby obtained as solid matter.

¹H-NMR (DMSO-d₆) δ: 1.85 (3H, s), 4.50 (2H, d, J=5.56 Hz), 5.09 (2H, d,J=2.27 Hz), 5.22 (1H, t, J=5.68 Hz), 7.08 (1H, d, J=7.33 Hz), 7.30 (1H,t, J=7.83 Hz), 7.70 (1H, d, J=8.59 Hz), 7.87 (1H, s), 8.44 (1H, s), 8.89(1H, s), 10.42 (1H, s).

Step 3

A 0.3 M solution of Dess-Martin reagent in dichloromethane (2.24 ml) wasadded to Compound (21) (100 mg) under nitrogen stream, and the mixturewas stirred for 2 hours at room temperature. The reaction solution wasconcentrated under reduced pressure. Thereafter, methanol was added andultrasound treatment was performed. Compound (22) (68 mg) was therebyobtained as solid matter.

¹H-NMR (DMSO-d₆) δ: 1.86 (3H, s), 5.09 (2H, d, J=2.27 Hz), 7.60 (1H, t,J=7.71 Hz), 7.68 (1H, d, J=7.58 Hz), 8.13 (1H, d, J=8.34 Hz), 8.46 (1H,s), 8.52 (1H, s), 8.91 (1H, s), 10.01 (1H, s), 10.81 (1H, s).

Step 4

Dichloromethane (1 ml) and a catalytic amount of acetic acid were addedto Compound (22) (50 mg) and Compound (23) (18 mg), and the mixture wasstirred for 20 minutes at room temperature. NaBH(OAc)₃ (113 mg) wasfurther added thereto, and the mixture was stirred for 7 hours at roomtemperature. The reaction solution was treated with a 2 M aqueous sodiumhydroxide solution, and then extracted with ethyl acetate. The organicphase was rinsed with aqueous NaCl solution, and dried with magnesiumsulfate. The solvent was then distilled away under reduced pressure, andthe residue was purified by thin layer chromatography. Compound 482 (22mg) was thereby obtained.

¹H-NMR (DMSO-d₆) δ: 1.85 (3H, s), 4.29 (2H, d, J=5.05 Hz), 5.09 (2H, d,J=2.27 Hz), 5.46-5.49 (1H, m), 5.53 (2H, s), 6.35-6.39 (1H, m),6.46-6.48 (1H, m), 7.11-7.13 (1H, m), 7.25-7.26 (1H, m), 7.31 (1H, t,J=7.96 Hz), 7.72-7.74 (1H, m), 7.91 (1H, s), 8.43 (1H, s), 8.89 (1H, s),10.45 (1H, s).

The other compounds were synthesized in the same manner as mentionedabove. The structures and the physical constants thereof are listedbelow. With respect to LC-MS, the unit of retention time in the table is“minute”, and the measurement conditions were as follows.

Method A

Column: Luna C18 (2) (5 μm, i.d. 4.6×50 mm) (Phenomenex)

Flow rate: 3 mL/min.

UV detection wavelength: 254 nm

Mobile phase: [A] 0.1% formic acid-containing aqueous solution; [B] 0.1%formic acid-containing acetonitrile solution

Gradient: performing linear gradient of 10% to 100% solvent [B] for 3minutes, and keeping 100% solvent [B] for 1 minute

Method B

Column: Shim-pack XR-ODS (2.2 μm, i.d. 50×3.0 mm) (Shimadzu)

Flow rate: 1.6 mL/min.

UV detection wavelength: 254 nm

Mobile phase: [A] 0.1% formic acid-containing aqueous solution; [B] 0.1%formic acid-containing acetonitrile solution

Gradient: performing linear gradient of 10% to 100% solvent [B] for 3minutes, and keeping 100% solvent [B] for 1 minute

TABLE 129 Retention Compound MS time Measurement No. (M + H)+ (min.)method NMR 34 372.9 0.89 Method A 35 368.9 0.89 Method A ¹H-NMR(DMSO-d₆) δ: 1.38 (3H, s), 2.65-2.95 (2H, m), 2.99 (3H, s), 4.03 (3H,s), 5.94 (2H, brs), 7.18 (1H, d, J = 8.1 Hz), 7.29 (1H, t, J = 8.1 Hz),7.74 (1H, t, J = 8.1 Hz), 7.89 (1H, s), 8.42 (1H, d, J = 1.1 Hz), 8.90(1H, d, J = 1.1 Hz), 10.38 (1H, s). 40 413.6 1.04 Method B 43 393.1 1.12Method B 44 407 1.13 Method A 473 351.1 1.16 Method B 478 395.35 1.19Method B 481 375.1 1.26 Method B 482 389.4 1.46 Method B ¹H-NMR(DMSO-d₆) δ: 1.85 (3H, s), 4.29 (2H, d, J = 5.05 Hz), 5.09 (2H, d, J =2.27 Hz), 5.46-5.49 (1H, m), 5.53 (2H, s), 6.35-6.39 (1H, m), 6.46-6.48(1H, m), 7.11-7.13 (1H, m), 7.25-7.26 (1H, m), 7.31 (1H, t, J = 7.96Hz), 7.72-7.74 (1H, m), 7.91 (1H, s), 8.43 (1H, s), 8.89 (1H, s), 10.45(1H, s).

Test Example 1 Measurement of BACE1 Inhibitory Activity

First, 48.5 μl portions of a solution of substrate peptide(Biotin-XSEVNLDAEFRHDSGC-Eu: X=ε-amino-n-capronic acid, Eu=Europiumcryptate) were put into respective wells of a 96-well half areamicroplate (black microplate, Costar). Then, 0.5 μl of a test compound(DMSO (dimethyl sulfoxide) solution) and 1 μl of Recombinant humanBACE-1 (R&D systems) were added to each of the wells, and they werereacted for 3 hours at 30° C. The substrate peptide was synthesized byreacting Biotin-XSEVNLDAEFRHDSGC (PEPTIDE INSTITUTE, INC.) with CryptateTBPCOOH mono SMP (CIS bio international). The final concentration of thesubstrate peptide was set to 18 nM, and the final concentration ofRecombinant human BACE-1 was set to 7.4 nM. The reaction buffer used wasa sodium acetate buffer (50 mM sodium acetate, pH 5.0, 0.008% TritonX-100). After the reaction finished, 50 μl portions of a 8.0 μg/mlsolution of Streptavidin-XL665 (CIS bio international) in a phosphatebuffer (150 mM K₂HPO₄—KH₂PO₄, pH 7.0, 0.008% Triton X-100, 0.8 M KF)were added to the respective wells, and the plate was left standing for1 hour at 30° C. Thereafter, the fluorescence intensity (excitationwavelength: 320 nm, measurement wavelength: 620 nm and 665 nm) wasmeasured with a Wallac 1420 multilabel counter (Perkin Elmer lifesciences). The enzyme activity was determined from the count rate ateach measurement wavelength (10000× Count 665/Count 620), and the amountneeded to inhibit the enzyme activity by 50% (IC₅₀) was calculated.Table 130 shows IC₅₀ value of each test compound. Here, a BACE1inhibitor having the following structure, disclosed in the document (J.Med. Chem., 2004, 47, 6447), was used as a reference compound.

TABLE 130

Compound No. IC₅₀ (μM) 34 0.037 35 0.042 40 0.014 43 0.056 44 0.012 473 1.985 478  3.176 481  0.180 482  0.073 Reference 0.019 Compound

The above results show that the compound of the present inventiongreatly inhibits BACE1 enzyme activity.

Test Example 2 Measurement of β-amyloid (Aβ) Production InhibitoryEffect in Cell

Neuroblastoma SH-SY5Y cells (SH/APPwt) with human wild-type β-APPexcessively expressed therein were prepared at 8×10⁵ cells/mL, and 150μl portions thereof were inoculated into respective wells of a 96-wellculture plate (Falcon). The cells were cultured for 2 hours at 37° C. ina 5% gaseous carbon dioxide incubator. Then, a solution which had beenpreliminarily prepared by adding and suspending the test compound (DMSO(dimethyl sulfoxide) solution) so as to be 2 μl/50 μl medium was addedto the cell sap. Namely, the final DMSO concentration was 1%, and theamount of the cell culture was 200 μl. After the incubation wasperformed for 24 hours from the addition of the test compound, 100 μl ofthe culture supernatant was collected from each fraction. The amount ofthe Aβ in each fraction was measured.

The Aβ amount was measured as follows. 10 μl of a homogeneous timeresolved fluorescence (HTRF) measurement reagent (Amyloid-β 1-40peptide; IBA Molecular Holding, S.A.) and 10 μl of the culturesupernatant were put into a 384-well half area microplate (blackmicroplate, Costar) and mixed with each other, and then left standingovernight at 4° C. while the light was shielded. Then, the fluorescenceintensity (excitation wavelength: 337 nm, measurement wavelength: 620 nmand 665 nm) was measured with a Wallac 1420 multilabel counter (PerkinElmer life sciences). The Aβ amount was determined from the count rateat each measurement wavelength (10000×Count 665/Count 620), and theamount needed to inhibit Aβ production by 50% (IC₅₀) was calculated fromat least six different dosages. Table 131 shows the IC₅₀ value of eachtest compound.

TABLE 131 Compound No. IC₅₀ (μM) 34 0.0762 35 0.0066 40 0.0009 43 0.028644 0.0007 473  0.4787 478  0.8114 481  0.0768 482  0.0438 Reference0.0368 Compound

The above results show that the compounds of the present inventiongreatly inhibit Aβ production.

Test Example 3 CYP3A4 Fluorescent MBI Test

The CYP3A4 fluorescent MBI test is a test to examine enhancement ofCYP3A4 inhibition by metabolic reaction of the compound. Here, E.coli-expressing CYP3A4 was used as an enzyme, and a reaction wherein7-benzyloxy trifluoromethylcumarin (7-BFC) was debenzylated by theCYP3A4 enzyme into a fluorescent metabolite7-hydroxytrifluoromethylcumarin (HFC) was employed as an indicatorreaction. The reaction conditions were as follows.

Substrate: 5.6 μmol/L 7-BFC

Pre-reaction time: 0 or 30 minutes

Reaction time: 15 minutes

Reaction temperature: 25° C. (room temperature)

CYP3A4 content (E. coli-expressing enzyme): 62.5 pmol/mL atpre-reaction, 6.25 μmol/mL at reaction (10-fold diluted)

Test compound concentration: 0.625, 1.25, 2.5, 5, 10, and 20 μmol/L (sixdifferent concentrations).

The enzyme and a test compound solution were added to a K-Pi buffer (pH7.4) in the aforementioned amounts for the pre-reaction so that apre-reaction solution was prepared, and this solution was put into a96-well microplate. Part of this solution was transferred to another96-well microplate such that it was diluted with the substrate and theK-Pi buffer to get a 10-fold diluted solution. NADPH, which is acoenzyme, was added so as to trigger the indicator reaction (withoutpre-reaction). As the reaction proceeded for a predetermined timeperiod, acetonitrile/0.5 mol/L Tris (tris hydroxyaminomethane)=4/1 wasadded to terminate the reaction. NADPH was also added to the residualpre-reaction solution so as to trigger the pre-reaction (withpre-reaction). As the pre-reaction proceeded for a predetermined timeperiod, part of the solution was transferred to another microplate sothat the solution was diluted with the substrate and the K-Pi buffer toget a 10-fold diluted solution, and then the indicator reaction wastriggered. As the reaction proceeded for a predetermined time period,acetonitrile/0.5 mol/L Tris (tris hydroxyaminomethane)=4/1 was added soas to terminate the reaction. With respect to each of the microplates onwhich the indicator reaction was performed, the fluorescence value ofthe metabolite 7-HFC was measured with a fluorescence plate reader(Ex=420 nm, Em=535 nm). Control (100%) was prepared by adding only DMSO,which was used as a solvent to dissolve the drug, to the reactionsystem. The remaining activity (%) at each concentration after addingthe test compound solution was calculated, and the IC₅₀ value wascalculated from the concentration and inhibition percentage by inverseestimation with the logistic model. When the difference of the IC₅₀values was 5 μM or higher, it was regarded as (+), and when thedifference was 3 μM or lower, it was regarded as (−).

(Results)

Compound No. 40: (−)

Compound No. 43: (−)

Test Example 4 CYP Inhibition Test

Using commercially available pooled human liver microsomes and employingtypical substrate metabolic reactions of 5 major species of human CYPenzymes (CYP1A2, 2C9, 2C19, 2D6, 3A4), namely, O-deethylation of7-ethoxyresorufin (CYP1A2), methyl-hydroxylation of tolbutamide(CYP2C9), 4′-hydroxylation of mephenyloin (CYP2C19), O-demethylation ofdextromethorphan (CYP2D6), and hydroxylation of terfenadine (CYP3A4), asindicator reactions, the degree of inhibition of each metaboliteproduction by each test compound was evaluated.

The reaction conditions were as follows:

Substrate: 0.5 μmol/L of ethoxyresorufin (CYP1A2), 100 μmol/L oftolbutamide (CYP2C9), 50 μmol/L of S-mephenyloin (CYP2C19), 5 μmol/L ofdextromethorphan (CYP2D6), 1 μmol/L of terfenadine (CYP3A4);

Reaction time period: 15 minutes;

Reaction temperature: 37° C.;

Enzyme: pooled human liver microsomes 0.2 mg protein/mL;

Test compound concentration: 1, 5, 10 and 20 μmol/L (four differentconcentrations).

As a reaction solution, the respective five substrates, human livermicrosomes, and test compound in the aforementioned amounts were addedto a 50 mM Hepes buffer in a 96-well microplate. NADPH, which is acoenzyme, was added thereto to start the indicator metabolic reaction.The reaction proceeded for 15 minutes at 37° C., and the solution ofmethanol/acetonitrile=1/1 (v/v) was added so as to terminate thereaction. Centrifugation was performed for 15 minutes at 3000 rpm, andeach metabolite in the centrifuged supernatant was quantified. Namely,resorufin (CYP1A2 metabolite) was quantified with a fluorescencemultilabel counter, and hydroxylated tolbutamide (CYP2C9 metabolite),4′-hydroxylated mephenyloin (CYP2C19 metabolite), dextrorphan (CYP2D6metabolite) and alcoholized terfenadine (CYP3A4 metabolite) werequantified with LC/MS/MS.

Control (100%) was prepared by adding only DMSO, which was used as asolvent to dissolve the drug, to the reaction system. The remainingactivity (%) at each concentration after adding the test compoundsolution was calculated, and the IC₅₀ value was calculated from theconcentration and inhibition percentage by inverse estimation with thelogistic model.

(Results)

Compound No. 44: five species >20 μM

Compound No. 473: five species >20 μM

Test Example 5 FAT Test

20 μL of each strain of cryopreserved Salmonella typhimurium (TA98,TA100) is inoculated to 10 mL of a nutrient broth (2.5% Oxoid nutrientbroth No. 2), and cultured for 10 hours at 37° C. before shaking. Withrespect to TA98, 9 mL of the bacterial culture is centrifuged (2000×g,10 minutes) so that the culture medium is removed. The bacteria aresuspended in 9 mL of a Micro F buffer (K₂HPO₄: 3.5 g/L, KH₂PO₄: 1 g/L,(NH₄)₂SO₄: 1 g/L, trisodium citrate dihydrate: 0.25 g/L, MgSO₄.7H₂O: 0.1g/L), and added to 110 mL of an Exposure medium (Micro F buffercontaining: biotin (8 μg/mL), histidine (0.2 μg/mL), and glucose (8mg/mL)) to prepare a test bacterial culture. With respect to TA100, 3.16mL of the bacterial culture is added to 120 mL of an Exposure medium toprepare a test bacterial culture. 588 μL of each test bacterial culture(mixed solution of 498 μL of the test bacterial culture and 90 μL of S9mix for a metabolic activation condition) is mixed with 12 μL each of asolution of the test compound in DMSO (8-step 2-fold serial dilutionfrom the maximum dosage of 50 mg/mL), DMSO as negative control, andpositive controls (non-metabolic activation condition: a 50 μg/mLsolution of 4-nitroquinoline-1-oxide in DMSO for TA98, a 0.25 μg/mLsolution of 2-(2-furyl)-3-(5-nitro-2-furyl)acrylamide in DMSO for TA100;metabolic activation condition: a 40 μg/mL solution of 2-aminoanthracenein DMSO for TA98, a 20 μg/mL solution of 2-aminoanthracene in DMSO forTA100). The mixture is shake-cultured for 90 minutes at 37° C. 460 μL ofthe bacterial culture exposed to the test compound is added to 2300 μLof an Indicator medium (Micro F buffer containing biotin (8 μg/mL),histidine (0.2 μg/mL), glucose (8 mg/mL), and bromocresol purple (37.5μg/mL)), and 50 μL portions of the mixture are dispensed in a microplate48 wells/dosage. The mixture is stationarily cultured for 3 days at 37°C. In the wells containing bacteria which acquired proliferation potencydue to mutation of the amino acid (histidine) synthase gene, the colorof the mixture changes from purple to yellow due to pH change. Thus, thenumber of bacterial proliferation wells in which the color of themixture has turned into yellow is counted among the 48 wells for eachdosage, and evaluation is performed in comparison with the negativecontrol group. Negative mutagenicity is evaluated as (−), while positivemutagenicity as (+).

Test Example 6 Solubility Test

The solubility of each compound was determined under 1% DMSO additionconditions. A 10 mM solution of the compound was prepared with DMSO, and6 μL of the compound solution was added to 594 μL of an artificialintestinal juice (water and 118 mL of 0.2 mol/L NaOH reagent were addedto 250 mL of 0.2 mol/L potassium dihydrogen phosphate reagent to reach1000 mL) with a pH of 6.8. The mixture was left standing for 16 hours at25° C., and the mixture was vacuum-filtered. The filtrate was two-folddiluted with methanol/water=1/1, and the compound concentration in thefiltrate was measured with HPLC or LC/MS/MS by the absolute calibrationmethod.

(Results)

Compound No. 473: >50 μM

Compound No. 478: >50 μM

Test Example 7 Metabolic Stability Test

The target compound was reacted with commercially available pooled humanliver microsomes for a predetermined time period. The residual rate wascalculated by comparing the reacted sample and unreacted sample, andthus the degree of metabolism in liver was evaluated.

In 0.2 mL of a buffer (50 mmol/L tris-HCl pH 7.4, 150 mmol/L potassiumchloride, 10 mmol/L magnesium chloride) containing human livermicrosomes 0.5 mg protein/mL, reaction was carried out in the presenceof 1 mmol/L NADPH for 0 minute or 30 minutes at 37° C. (oxidativereaction). After the reaction, 50 μL of the reaction solution was addedto and mixed with 100 μL of a solution of methanol/acetonitrile=1/1(v/v), and the mixture was centrifuged for 15 minutes at 3000 rpm. Thetest compound in the centrifuged supernatant was quantified by LC/MS/MS,and the residual amount of the test compound after the reaction wascalculated based on the compound amount at 0-minute reaction set as100%.

(Results) The residual rate at a compound concentration of 2 μM is shownbelow.

Compound No. 35: 99.5%

Test Example 8 hERG Test

For the purpose of risk assessment for QT prolongation on anelectrocardiogram, the action on delayed rectifier K+ current (I_(Kr))which plays an important role on a process of ventricular repolarizationwas studied using a HEK293 cell with a human ether-a-go-go related gene(hERG) channel expressed therein.

A cell was maintained at a membrane potential of −80 mV, and then +40 mVof a depolarizing stimulus was applied to the cell for 2 seconds andfurther −50 mV of a repolarizing stimulus was applied thereto for 2seconds by a whole-cell patch clamp technique with a fully-automaticpatch clamp system (PatchXpress 7000A, Axon Instruments Inc.), and theinduced I_(Kr) was recorded. As the current generated was stabilized, anextracellular fluid with the test compound dissolved therein at a targetconcentration (NaCl: 135 mmol/L, KCl: 5.4 mmol/L, NaH₂PO₄: 0.3 mmol/L,CaCl₂.2H₂O: 1.8 mmol/L, MgCl₂-6H₂O: 1 mmol/L, glucose: 10 mmol/L, HEPES(4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid): 10 mmol/L, pH=7.4)was applied to the cell for 10 minutes under room temperatureconditions. The absolute value of the maximum tail current wasdetermined from the obtained I_(Kr) with an analysis software(DataXpress ver. 1, Molecular Devices Corporation) based on a currentvalue at a maintained membrane potential. Further, an inhibitorypercentage relative to the maximum tail current before application ofthe test compound was calculated, and influence of the test compound onI_(Kr) was evaluated in comparison with the medium application group(0.1% dimethyl sulfoxide solution).

(Results) The inhibitory percentage at a compound concentration of 5 μMis shown below.

Compound No. 40: 4.1%

Test Example 9 Powder Solubility Test

Appropriate amounts of the test substances are put into appropriatecontainers. To the respective containers are added 200 μL of JP-1 fluid(sodium chloride 2.0 g, hydrochloric acid 7.0 mL and water to reach 1000mL), 200 μL of JP-2 fluid (phosphate buffer (pH 6.8) 500 mL and water500 mL), and 200 μL of 20 mmol/L TCA (sodium taurocholate)/JP-2 fluid(TCA 1.08 g and water to reach 100 mL). In the case that the testcompound is dissolved after the addition of the test fluid, the bulkpowder is added as appropriate. The containers are sealed, and shakenfor 1 hour at 37° C. The mixtures are filtered, and 100 μL of methanolis added to each of the filtrate (100 μL) so that the filtrates aretwo-fold diluted. The dilution ratio may be changed if necessary. Thedilutions are observed for bubbles and precipitates, and then thecontainers are sealed and shaken. Quantification is performed by HPLCwith an absolute calibration method.

Test Example 10 BA Test

Materials and Methods for Studies on Oral Absorption

(1) Animal: SD rats

(2) Breeding conditions: rats are allowed to freely take solid feed andsterilized tap water

(3) Dose and grouping: orally or intravenously administered at apredetermined dose; grouping is as follows (Dose depends on thecompound)

Oral administration: 1 to 30 mg/kg (n=2 to 3)

Intravenous administration: 0.5 to 10 mg/kg (n=2 to 3)

(4) Preparation of dosing solution: for oral administration, in asolution or a suspension state; for intravenous administration, in asolubilized state

(5) Administration method: in oral administration, forcedly administerinto ventriculus with oral probe; in intravenous administration,administer from caudal vein with a needle-equipped syringe

(6) Evaluation items: blood is collected over time, and the plasmaconcentration of drug is measured by LC/MS/MS

(7) Statistical analysis: regarding the transition of the plasmaconcentration, the area under the plasma concentration-time curve (AUC)is calculated by non-linear least squares program WinNonlin (Registeredtrademark), and the bioavailability (BA) is calculated from the AUCs ofthe oral administration group and intravenous administration group

Formulation Example 1

Granules containing the following ingredients are prepared.

Ingredients Compound of formula (I)  10 mg Lactose 700 mg Corn starch274 mg HPC-L  16 mg 1000 mg 

Compound of formula (I) and lactose are screened through a 60-meshsieve. Corn starch is screened through a 120-mesh sieve. Theseingredients are mixed by a V-shaped mixer. An aqueous solution of HPC-L(low-viscosity hydroxypropyl cellulose) is added to the mixed powders,and the mixture is kneaded, granulated (extrusion-granulation,pore-size: 0.5 to 1 mm), and dried. The dried granules obtained arescreened through a vibrating sieve (12/60 meshes), and thereby granulesare obtained.

Formulation Example 2

Granules to be capsulated containing the following ingredients areprepared.

Ingredients Compound of formula (I) 15 mg Lactose 90 mg Corn starch 42mg HPC-L  3 mg 150 mg 

Compound of formula (I) and lactose are screened through a 60-meshsieve. Corn starch is screened through a 120-mesh sieve. Then, theseingredients are mixed with each other. An HPC-L solution is added to themixed powders, and the mixture is kneaded, granulated, and dried. Thedried granules obtained are subjected to sizing, and 150 mg of the sizedgranules are capsulated into a size #4 hard gelatin capsule.

Formulation Example 3

A tablet containing the following ingredients is prepared.

Ingredients Compound of formula (I) 10 mg Lactose 90 mg Fine crystalcellulose 30 mg CMC-Na 15 mg Magnesium stearate  5 mg 150 mg 

Compound of formula (I), lactose, fine crystal cellulose, and CMC-Na(carboxymethyl cellulose sodium salt) are screened through a 60-meshsieve, and they are mixed with each other. Magnesium stearate is addedto the mixed powders, and thereby mixed powders for tablet are obtained.The mixed powders are directly compressed, so that a 150-mg tablet isobtained.

Formulation Example 4

The following ingredients are mixed under heating, and then sterilizedto be an injection.

Ingredients Compound of formula (I)  3 mg Nonionic surfactant 15 mgPurified water for injection  1 ml

Formulation Example 5

Granules containing the following ingredients are produced.

Ingredients Compound of formula (II)  10 mg Lactose 700 mg Corn starch274 mg HPC-L  16 mg 1000 mg 

Compound of formula (II) and lactose are screened through a 60-meshsieve. Corn starch is screened through a 120-mesh sieve. They are mixedby a V-shaped mixer. An aqueous solution of HPC-L (low-viscosityhydroxypropyl cellulose) is added to the mixed powders, and the mixtureis kneaded, granulated (extrusion-granulation, pore-size: 0.5 to 1 mm),and dried. The dried granules obtained are screened through a vibratingsieve (12/60 meshes), and thereby granules are obtained.

Formulation Example 6

Granules to be capsulated containing the following ingredients areprepared.

Ingredients Compound of formula (II) 15 mg Lactose 90 mg Corn starch 42mg HPC-L  3 mg 150 mg 

Compound of formula (II) and lactose are screened through a 60-meshsieve. Corn starch is screened through a 120-mesh sieve. Then, theseingredients are mixed with each other. An HPC-L solution is added to themixed powders, and the mixture is kneaded, granulated, and dried. Thedried granules obtained are subjected to sizing, and 150 mg of the sizedgranules are capsulated into a size #4 hard gelatin capsule.

Formulation Example 7

A tablet containing the following ingredients is prepared.

Ingredients Compound of formula (II) 10 mg Lactose 90 mg Fine crystalcellulose 30 mg CMC-Na 15 mg Magnesium stearate  5 mg 150 mg 

Compound of formula (II), lactose, fine crystal cellulose, and CMC-Na(carboxymethyl cellulose sodium salt) are screened through a 60-meshsieve, and they are mixed with each other. Magnesium stearate is addedto the mixed powder, and thereby mixed powders for tablet are obtained.The mixed powders are directly compressed, so that a 150-mg tablet isobtained.

Formulation Example 8

The following ingredients are mixed under heating, and then sterilizedto be an injection.

Ingredients Compound of formula (II)  3 mg Nonionic surfactant 15 mgPurified water for injection  1 ml

Industrial Applicability

The compound of the present invention may be a medicament useful as atherapeutic agent for diseases induced by production, secretion and/ordeposition of amyloid-β proteins.

The invention claimed is:
 1. A compound represented by formula (I) or apharmaceutically acceptable salt or solvate thereof,

wherein A is an optionally substituted carbocyclic diyl or an optionallysubstituted heterocyclic diyl; wherein a heterocyclic portion of theheterocyclic diyl is selected from the group consisting of pyrrolyl,imidazolyl, pyrazolyl, pyridyl, pyridazinyl, pyrimidinyl, pyrazinyl,triazolyl, triazinyl, tetrazolyl, furyl, isoxazolyl, oxazolyl,oxadiazolyl, isothiazolyl, thiazolyl, thiadiazolyl, dioxanyl, thiiranyl,oxiranyl, oxetanyl, oxathioranyl, azetidinyl, thianyl, thiazolidinyl,pyrrolidinyl, pyrrolinyl, imidazolidinyl, imidazolinyl, pyrazolidinyl,pyrazolinyl, piperidyl, piperazinyl, morpholinyl, morpholino,thiomorpholinyl, thiomorpholino, dihydropyridyl, tetrahydropyridyl,tetrahydrofuryl, tetrahydropyranyl, dihydrothiazolyl,tetrahydrothiazolyl, tetrahydroisothiazolyl, dihydrooxazinyl,hexahydroazepinyl, tetrahydrodiazepinyl, tetrahydropyridazinyl, indolyl,isoindolyl, indazolyl, indolizinyl, indolinyl, isoindolinyl, quinolyl,isoquinolyl, cinnolinyl, phthalazinyl, quinazolinyl, naphthyridinyl,quinoxalinyl, purinyl, pteridinyl, benzopyranyl, benzimidazolyl,benzotriazolyl, benzisoxazolyl, benzoxazolyl, benzoxadiazolyl,benzoisothiazolyl, benzothiazolyl, benzothiadiazolyl, benzofuryl,isobenzofuryl, benzothienyl, benzotriazolyl, thienopyridyl,thienopyrrolyl, thienopyrazolyl, thienopyrazinyl, furopyrrolyl,thienothienyl, imidazopyrazyl, imidazopyridyl, pyrazolopyridyl,thiazolopyridyl, pyrazolopyrimidinyl, pyrrolopyrimidinyl,pyrazolotriazinyl, pyridazolopyridyl, triazolopyridyl, imidazothiazolyl,pirazinopyridazinyl, quinazolinyl, quinolyl, isoquinolyl,naphthyridinyl, dihydrothiazolopyrimidinyl, tetrahydroquinolyl,tetrahydroisoquinolyl, dihydrobenzofuryl, dihydrobenzoxazinyl,dihydrobenzimidazolyl, tetrahydrobenzothienyl, tetrahydrobenzofuryl,benzodioxolyl, benzodioxonyl, chromanyl, chromenyl, octahydrochromenyl,dihydrobenzodioxinyl, dihydrobenzooxedinyl, dihydrobenzodioxepinyl,dihydrothienodioxinyl,carbazolyl, acridinyl, xanthenyl, phenothiazinyl,phenoxathiinyl, phenoxazinyl, dibenzofuryl, imidazoquinolyl andtetrahydrocarbazolyl; B is an optionally substituted heterocyclic group;R¹ is an optionally substituted lower alkyl, an optionally substitutedlower alkenyl, or an optionally substituted lower alkynyl, or R¹ forms abond together with R^(3a) or R^(3b); R² is hydrogen, an optionallysubstituted lower alkyl, an optionally substituted lower alkenyl, anoptionally substituted lower alkynyl, an optionally substituted acyl oran optionally substituted lower alkoxycarbonyl; and R^(3a) and R^(3b)are each independently hydrogen, halogen, hydroxy, an optionallysubstituted lower alkyl, an optionally substituted lower alkenyl, anoptionally substituted acyl, an optionally substituted lower alkoxy, anoptionally substituted aralkyl, an optionally substitutedheteroarylalkyl, an optionally substituted aralkyloxy, an optionallysubstituted heteroarylalkyloxy, an optionally substituted loweralkylthio, carboxy, an optionally substituted lower alkoxycarbonyl, anoptionally substituted amino, an optionally substituted carbamoyl, anoptionally substituted carbocyclic group or an optionally substitutedheterocyclic group, or R^(3a) or R^(3b) forms a bond together with R¹,provided that the following compound is excluded


2. The compound or a pharmaceutically acceptable salt or solvate thereofaccording to claim 1, wherein A is an optionally substitutedbenzenediyl, an optionally substituted pyridinediyl, an optionallysubstituted pyrazinediyl or an optionally substituted benzofurandiyl. 3.The compound or a pharmaceutically acceptable salt or solvate thereofaccording to claim 1, wherein the substituent of the heterocyclic groupfor B is an optionally substituted lower alkoxy, an optionallysubstituted lower alkenyloxy or an optionally substituted loweralkynyloxy.
 4. The compound or a pharmaceutically acceptable salt orsolvate thereof according to claim 1, wherein R^(3a) and R^(3b) are bothhydrogen.
 5. The compound or a pharmaceutically acceptable salt orsolvate thereof according to claim 1, wherein R¹ and R^(3a) togetherform a bond, and R^(3b) is hydrogen.
 6. The compound or apharmaceutically acceptable salt or solvate thereof according to claim1, wherein R¹ is C1-C3 alkyl.
 7. The compound or a pharmaceuticallyacceptable salt or solvate thereof according to claim 1, wherein R² isan optionally substituted lower alkyl.
 8. A pharmaceutical composition,comprising the compound or a pharmaceutically acceptable salt or solvatethereof according to claim 1 as an active ingredient.
 9. Thepharmaceutical composition according to claim 8, which has a BACE1inhibitory activity.